in The International Forum on Illegal, Unreported and Unregulated Fishing By feedproxy.google.com Published On :: Wed, 15 Jan 2020 15:41:40 +0000 The International Forum on Illegal, Unreported and Unregulated (IUU) Fishing brings together over 100 leading policymakers, researchers, industry representatives and civil society groups from across the world to discuss the latest initiatives, regulations and research in the areas of fisheries governance and trade in illegal fish products. Department contact Anna Aberg Research Analyst, Energy, Environment and Resources Programme 020 7314 3629 Email Latest (1) Research Event 12th International Forum on Illegal, Unreported and Unregulated Fishing 18 May 2020 Full Article
in Will a Devastating Bushfire Season Change Australia’s Climate Stance? By feedproxy.google.com Published On :: Thu, 23 Jan 2020 09:20:27 +0000 23 January 2020 Madeleine Forster Richard and Susan Hayden Academy Fellow, International Law Programme @maddiefors LinkedIn Professor Tim Benton Research Director, Emerging Risks; Director, Energy, Environment and Resources Programme @timgbenton Google Scholar With Australians experiencing first-hand the risks of climate change, Madeleine Forster and Tim Benton examine the influencers, at home or abroad, that could push the government towards more action. 2020-01-23-FireNSW.jpg Residents look on as flames burn through bush on 4 January 2020 in Lake Tabourie, NSW. Photo: Getty Images. The 2019–20 fire season in Australia has been unprecedented. To date, an estimated 18 million hectares of fire has cut swathes through the bush – an area greater than that of the average European country and over five times the size of blazes in the Amazon.This reflects previous predictions of Australian science. Since 2008 and as recently as 2018, scientific bodies have warned that climate change will exacerbate existing conditions for fires and other climatic disasters in Australia. What used to be once-in-a-generation fires now re-appear within 10–15 years with increased ferocity, over longer seasons.In a country known for climate denial and division, debate has erupted around bushfire management and climate change. One of these is whether controlled burns are the answer to Australia’s climate-affected fire conditions.There is no single risk reduction strategy. Controlled burning remains key, if adapted to the environment and climate. But when three out of four seasons in a year can support destructive bushfires, there are clear limits to what controlled burning and other fire management techniques can achieve. Other ‘adaptation’ measures are also likely to provoke intense debate – including bush clearance. As one Australian expert offered to highlight where Australia has got to, families should probably not go on holiday to bush and beach during the height of summer when temperatures and fire risk peaks. So, unless Australia is prepared to debate radical changes to where people live and how land is used, the limits to adaptation imply the need for mitigation. This means supporting ambitious global greenhouse emissions reductions targets. As research from Victoria, one fire-prone state in Australia, highlights, ‘the emissions pathway we follow is the largest determinant of change to many variables [such as temperature] beyond the next few decades.’Can Australia become a more active global partner on emissions?Australia accounts for just over one per cent of global emissions, so reducing domestic emissions – even though on a per capita basis they are the highest in the world – will not reduce Australia’s climate risk. Showing international leadership and supporting a powerful coalition of the willing to tackle climate change is the only way ahead. By showing a willingness to adopt climate ambition, Australia can help more constructive worldwide action, and thereby reduce its own risk exposure. Leading by example is a politically difficult issue for Australia. Prime Minister Scott Morrison was re-elected in May 2019 on an economic stability platform, and a promise not to imperil employment growth through climate action. Australia has contested UN estimates that it will not meet its existing modest goals for domestic emissions, by seeking to rely on carryover credits from action under the Kyoto Protocol as proof of progress.It has also distanced itself from concerns over global supply and demand in fossil fuels. Australia remains a global supplier for fossil fuels, including coal – the nation’s coal exports accounted for $67 billion in revenues in 2019 in an expanding but changing Asian market, supplying ‘some of the cheapest electricity in the world’.Possible influencers of changeWith Australians experiencing first-hand the risks of climate change, there is already pressure to do more. Many are sceptical this will translate into domestic targets or export policies that give Australia the moral authority to ask for more action on the global stage.Here, diverse groups who share a common interest in seeing Australia recover from the bushfires and address future climate risks could be key.Importantly this includes rural and urban-fringe communities affected by the bushfires. They were part of Morrison’s traditional supporter-base but are angry at the government’s handling of the crisis and increasingly see how tiptoeing around emissions (including exports) has also ‘buried’ open discussion at home on climate-readiness.Australian states could also find themselves taking a lead role. Virtually all jurisdictions have now committed to their own goals, most based on zero-carbon goals by 2050 (as has New Zealand). These can support modelling for Australia’s energy transition from coal, through gas, to market competitive renewables, while also help to ensure this reflects community expectations on jobs, electricity prices and other costs. Other emerging voices include the insurance and banking sectors (the Reserve Bank of Australia warned of the long-term financial stability risks of climate change before the fires) and indigenous Australians (one group of Torres Strait Islanders have filed a complaint to the UN Human Rights Committee which, if heard, will place Australia’s emissions record under the spotlight again). Their challenge now is finding a common language on what a cohesive approach to addressing climate change risk looks like. The international picture is mixed. The United States’ poor federal climate policy is a buffer for Australia. French President Emmanuel Macron has tried to raise the cost of inaction for Australia in current EU–Australia trade negotiations, but many large emitters in the Indo-Pacific region remain key Australian trading partners, investors and buyers of Australian coal. In the meantime, the United Kingdom is preparing for the meeting of parties to the Paris Agreement in Glasgow in November. A key global event following Brexit, the UK will no doubt be hoping to encourage a leadership circle with national commitments that meet global need to make the Glasgow meeting a success.The UK public has expressed enormous sympathy for Australia in the bushfires and outrage over ‘climate denialism.’ Australia’s experience will be a cautionary tale of the effects of climate change at the meeting. Could the UK also support Australia to become a less reluctant partner in global climate action? Full Article
in Maintaining Connections: How Might the UK Remain Engaged in the EU's Climate and Energy Strategies? By feedproxy.google.com Published On :: Thu, 23 Jan 2020 10:35:01 +0000 Invitation Only Research Event 3 March 2020 - 10:30am to 12:00pm Chatham House | 10 St James's Square | London | SW1Y 4LE As the UK leaves the EU and the formal negotiations on the future relationship begins, this workshop will discuss any immediate changes and review the short and medium term impacts of Brexit on the energy sector. The workshop will look to cover:The implications for UK business and system operations of the UK leaving the Internal Energy Market.Current and future investment trends in the UK energy system.The trade of electricity and gas over inter-connectors.The need for the development of a new EU-UK operational framework mechanism.The UK's EU withdrawal agreement and the operation of the Single Electricity Market (SEM) across Ireland. Options for the UK outside of the EU Emissions Trading System (ETS) and the impact on carbon prices.This workshop is part of a programme funded by the UK Energy Research Centre on Brexit and the UK’s Net Zero Energy Policy being run by the University of Warwick and Chatham House.Attendance at this event is by invitation only. Event attributes Chatham House Rule Department/project Energy, Environment and Resources Programme Chloé Prendleloup Email Full Article
in The prospects of carbon dioxide removal in climate policymaking within the United States By feedproxy.google.com Published On :: Fri, 14 Feb 2020 10:40:01 +0000 Research Event 19 November 2019 - 9:00am to 5:00pm School of Law, University of California, Davis Agendapdf | 158.8 KB Meeting Summarypdf | 207.92 KB This meeting formed part of a programme of work which investigates the role of negative emissions technologies (NETs) in achieving the Paris Agreement climate targets. Previous meetings held in London and Brussels have looked at integrating negative emissions into EU policy-making, the implications and degree to which NETs, and in particular bioenergy with carbon capture storage (BECCS), can be an effective climate mitigation tool. This meeting focused on the possible deployment pathways of NETs and alternatives to BECCS for the US in particular, in the context of geographical constraints and socioenvironmental implications, the role of the private sector, and appropriate governance and finance mechanisms. Department/project Energy, Environment and Resources Programme, Bioenergy, Carbon Capture and Storage (BECCS) Melissa MacEwen Project Manager, Energy, Environment and Resources Programme Email Full Article
in The Indo-Pacific: Geostrategic Outlook From Now to 2024 - Workshop 5 By feedproxy.google.com Published On :: Mon, 17 Feb 2020 14:25:01 +0000 Invitation Only Research Event 18 February 2020 - 12:00pm to 4:30pm Langafonua Centre This roundtable explores possible strategic shifts in the Indo-Pacific between now and 2024. Focusing on trade security, climate change disruptions and security cooperation, it aims to enhance the understanding of the regional goals of, and strategic relationships between, the key countries active in the region.The workshop is part of a larger project funded by the Strategic Policy Division of the Australian Department of Defence. The project includes workshops in the United States, the United Kingdom, France, Japan, India and the Pacific Islands (Tonga). Department/project Asia-Pacific Programme, Sustainable and Inclusive Growth, Trade, Investment and Economics, Energy, Environment and Resources Programme Anna Aberg Research Analyst, Energy, Environment and Resources Programme 020 7314 3629 Email Full Article
in To Advance Trade and Climate Goals, ‘Global Britain’ Must Link Them By feedproxy.google.com Published On :: Thu, 19 Mar 2020 17:12:54 +0000 19 March 2020 Carolyn Deere Birkbeck Associate Fellow, Global Economy and Finance Programme, and Hoffmann Centre for Sustainable Resource Economy @carolyndeere LinkedIn Google Scholar Dr Emily Jones Associate Professor, Blavatnik School of Government Dr Thomas Hale Associate Professor, Blavatnik School of Government COVID-19 is a sharp reminder of why trade policy matters. As the UK works to forge new trade deals, it must align its trade policy agenda with its climate ambition. 2020-03-19-Boris-Johnson-COP26.jpg Boris Johnson at the launch of the UK-hosted COP26 UN Climate Summit at the Science Museum, London on February 4, 2020. Photo by Jeremy Selwyn - WPA Pool/Getty Images. COVID-19 is a sharp reminder of why trade and climate policy matters. How can governments maintain access to critical goods and services, and ensure global supply chains function in times of crisis?The timing of many trade negotiations is now increasingly uncertain, as are the UK’s plans to host COP26 in November. Policy work continues, however, and the EU has released its draft negotiating text for the new UK-EU trade deal, which includes a sub-chapter specifically devoted to climate. This is a timely reminder both of the pressing need for the UK to integrate its trade and climate policymaking and to use the current crisis-induced breathing space in international negotiations - however limited - to catch up on both strategy and priorities on this critical policy intersection.The UK government has moved fast to reset its external trade relations post-Brexit. In the past month it formally launched bilateral negotiations with the EU and took up a seat at the World Trade Organization (WTO) as an independent member. Until the COVID-19 crisis hit, negotiations were also poised to start with the US.The UK is also in the climate spotlight as host of COP26, the most important international climate negotiation since Paris in 2015, which presents a vital opportunity for the government to show leadership by aligning its trade agenda with its climate and sustainability commitments in bold new ways.Not just an empty aspirationThis would send a signal that ‘Global Britain’ is not just an empty aspiration, but a concrete commitment to lead.Not only is concerted action on the climate crisis a central priority for UK citizens, a growing and increasingly vocal group of UK businesses committed to decarbonization are calling on the government to secure a more transparent and predictable international market place that supports climate action by business.With COP26, the UK has a unique responsibility to push governments to ratchet up ambition in the national contributions to climate action – and to promote coherence between climate ambition and wider economic policymaking, including on trade. If Britain really wants to lead, here are some concrete actions it should take.At the national level, the UK can pioneer new ways to put environmental sustainability – and climate action in particular - at the heart of its trade agenda. Achieving the government’s ambitious Clean Growth Strategy - which seeks to make the UK the global leader in a range of industries including electric cars and offshore wind – should be a central objective of UK trade policy.The UK should re-orient trade policy frameworks to incentivize the shift toward a more circular and net zero global economy. And all elements of UK trade policy could be assessed against environmental objectives - for example, their contribution to phasing out fossil fuels, helping to reverse overexploitation of natural resources, and support for sustainable agriculture and biodiversity.In its bilateral and regional trade negotiations, the UK can and should advance its environment, climate and trade goals in tandem, and implementation of the Paris Agreement must be a core objective of the UK trade strategy.A core issue for the UK is how to ensure that efforts to decarbonise the economy are not undercut by imports from high-carbon producers. Here, a ‘border carbon adjustment (BCA)’ - effectively a tax on the climate pollution of imports - would support UK climate goals. The EU draft negotiating text released yesterday put the issue of BCAs front and centre, making crystal clear that the intersection of climate, environment and trade policy goals will be a central issue for UK-EU trade negotiations.Even with the United States, a trade deal can and should still be seized as a way to incentivize the shift toward a net zero and more circular economy. At the multilateral level, as a new independent WTO member, the UK has an opportunity to help build a forward-looking climate and trade agenda.The UK could help foster dialogue, research and action on a cluster of ‘climate and trade’ issues that warrant more focused attention at the WTO. These include the design of carbon pricing policies at the border that are transparent, fair and support a just transition; proposals for a climate waiver for WTO rules; and identification of ways multilateral trade cooperation could promote a zero carbon and more circular global economy. To help nudge multilateral discussion along, the UK could also ask to join a critical ‘path finder’ effort by six governments, led by New Zealand, to pursue an agreement on climate change, trade and sustainability (ACCTS). This group aims to find ways forward on three central trade and climate issues: removing fossil fuel subsidies, climate-related labelling, and promoting trade in climate-friendly goods and services.At present, the complex challenges at the intersection of climate, trade and development policy are too often used to defer or side-step issues deemed ‘too hard’ or ‘too sensitive’ to tackle. The UK could help here by working to ensure multilateral climate and trade initiatives share adjustment burdens, recognise the historical responsibility of developed countries, and do not unfairly disadvantage developing countries - especially the least developed.Many developing countries are keen to promote climate-friendly exports as part of wider export diversification strategies and want to reap greater returns from greener global value chains. Further, small island states and least-developed countries – many of which are Commonwealth members – that are especially vulnerable to the impacts of climate change and natural disasters, need support to adapt in the face of trade shocks and to build climate-resilient, trade-related infrastructure and export sectors.As an immediate next step, the UK should actively support the growing number of WTO members in favour of a WTO Ministerial Statement on environmental sustainability and trade. It should work with its key trading partners in the Commonwealth and beyond to ensure the agenda is inclusive, supports achievement of the UN Sustainable Development Goals (SDGs) and helps developing countries benefit from a more environmentally sustainable global economy.As the UK prepares to host COP26, negotiates deals with the EU and US, and prepares for its first WTO Ministerial meeting as an independent member, it must show it can lead the way nationally, bilaterally, and multilaterally. And to ensure the government acts, greater engagement from the UK’s business, civil society and research sectors is critical – we need all hands on deck to forge and promote concrete proposals for aligning UK trade policy with the climate ambition our world needs. Full Article
in Promoting a Just Transition to an Inclusive Circular Economy By feedproxy.google.com Published On :: Wed, 01 Apr 2020 11:19:03 +0000 1 April 2020 Considerations of justice and social equity are as important for the circular economy transition as they are in the contexts of low-carbon transitions and digitalization of the economy. This paper sets out the just transition approach, and its relevance in climate change and energy transition debates. Read online Download PDF Patrick Schröder Senior Research Fellow, Energy, Environment and Resources Programme @patricks_CH Google Scholar 2020-04-01-circular-economy.jpg Residents of Mount Ijen take sulphur at Ijen Crater, Banyuwangi, East Java, on 2 July 2018. Photo: Getty Images. Summary Many social and political issues have so far been neglected in planning for the circular economy transition. This paper aims to redress this by considering how ‘just transition’ and social equity may be achieved through policy and practice.The prevailing economic model is linear, in that resources are extracted, transformed into products, used, and finally discarded. In contrast, the circular economy recognizes that natural resources are finite, and aims to keep the materials in products in circulation for as long as possible: reusing, repairing, remanufacturing, sharing and recycling. While the concept of the circular economy is largely focused on developing new technologies and businesses to enable keeping materials in circulation, it also includes the notions of ‘designing out’ waste, substituting renewable materials for non-renewable ones, and restoring natural systems.The UN 2030 Agenda demonstrates that environmental, social and economic sustainability objectives cannot be separated. As the links between the environmental issues of climate change, overconsumption of resources and waste generation, and social issues of inequality and the future of work become increasingly obvious, the urgency to connect environmental with social justice is gaining in significance. The language of ‘just transition’ – a transition that ensures environmental sustainability, decent work, social inclusion and poverty eradication – has started to penetrate debates and research on sustainability policy, particularly in the contexts of climate change and low-carbon energy transition.A just transition framework for the circular economy can identify opportunities that reduce waste and stimulate product innovation, while at the same time contributing positively to sustainable human development. And a just transition is needed to reduce inequalities within and between countries, and to ensure that the commitment of the UN Sustainable Development Goals to leave no one behind is fulfilled.It is important to identify the likely impacts on employment as a result of digitalization and industrial restructuring. Combining circular economy policies with social protection measures will be important in order to ensure that the burden of efforts to promote circularity will not fall on the poor through worsening working conditions and health impacts, reduced livelihoods, or job losses. Identifying potential winners and losers through participatory ‘roadmapping’ can help shape effective cooperation mechanisms and partnerships nationally and internationally.Many low- and middle-income countries that rely heavily on ‘linear’ sectors such as mining, manufacturing of non-repairable fast-moving consumer goods, textiles and agriculture, and the export of these commodities to higher-income countries, are likely to be negatively affected by the shift to circularity. These countries will need support from the international community through targeted assistance programmes if international trade in established commodities and manufactures declines in the medium to long term. International cooperation to create effective and fair governance mechanisms, and policy coordination at regional, national and local levels will play an important role in shaping a just transition. Multilateral technical assistance programmes will need to be designed and implemented, in particular to support low- and middle-income countries.Governments, international development finance institutions and banks are among the bodies beginning to establish circular economy investment funds and programmes. Just transition principles are yet to be applied to many of these new finance mechanisms, and will need to be integrated into development finance to support the circular economy transition.New international cooperation programmes, and a global mechanism to mobilize dedicated support funds for countries in need, will be critical to successful implementation across global value chains. Transparent and accountable institutions will also be important in ensuring that just transition funds reach those affected as intended. Department/project Energy, Environment and Resources Programme Full Article
in COP26 Diplomatic Briefing: Climate Ambition in Europe and its Potential Global Impact By feedproxy.google.com Published On :: Fri, 03 Apr 2020 14:05:01 +0000 17 February 2020 - 8:30am to 10:00am Chatham House | 10 St James's Square | London | SW1Y 4LE Jacob Werksman, Principal Adviser to Directorate General for Climate Action, European CommissionImke Lübbeke, Head of EU Climate and Energy Policy, WWF European Policy Office Simon Petrie, Head of International Climate Strategy - Europe, UK Department for Business, Energy and Industrial StrategyJen Austin, Policy Director, We Mean Business CoalitionChair: Jill Duggan, Associate Fellow, Chatham House The President of the European Commission, Ursula von der Leyen, has declared that she wants Europe to become ‘the first climate-neutral continent by 2050’, and in December 2019, the Commission presented the European Green Deal in order to achieve this objective. However, even though greenhouse gas emissions from the EU have fallen by more than 20 per cent since 1990, the Union remains the third largest emitter in the world, after the United States and China.What are the opportunities and challenges for raising climate ambition in Europe? Will the EU increase its Nationally Determined Contribution and what impact might this have globally? How might Brexit affect climate action in the EU and the UK? The second event in the Chatham House COP26 Diplomatic Briefing Series will address these critical questions. Read meeting summarypdf | 118.6 KB Anna Aberg Research Analyst, Energy, Environment and Resources Programme 020 7314 3629 Email Department/project Energy, Environment and Resources Programme, COP26 Diplomatic Briefing Series Full Article
in Why an Inclusive Circular Economy is Needed to Prepare for Future Global Crises By feedproxy.google.com Published On :: Wed, 15 Apr 2020 13:23:01 +0000 15 April 2020 Patrick Schröder Senior Research Fellow, Energy, Environment and Resources Programme @patricks_CH Google Scholar The risks associated with existing production and consumption systems have been harshly exposed amid the current global health crisis but an inclusive circular economy could ensure both short-term and long-term resilience for future challenges. 2020-04-15-Waste-Collection-Peru.jpg Lima city employees picking up garbage during lockdown measures in Peru amid the COVID-19 crisis. Photo: Getty Images. The world is currently witnessing how vulnerable existing production and consumption systems are, with the current global health crisis harshly exposing the magnitude of the risks associated with the global economy in its current form, grounded, as it is, in a linear system that uses a ‘take–make–throw away’ approach.These ‘linear risks’ associated with the existing global supply chain system are extremely high for national economies overly dependent on natural resource extraction and exports of commodities like minerals and metals. Equally vulnerable are countries with large manufacturing sectors of ready-made garments and non-repairable consumer goods for western markets. Furthermore, workers and communities working in these sectors are vulnerable to these changes as a result of disruptive technologies and reduced demand.In a recently published Chatham House research paper, ‘Promoting a Just Transition to an Inclusive Circular Economy’, we highlight why a circular economy approach presents the world with a solution to old and new global risks – from marine plastic pollution to climate change and resource scarcity.Taking the long viewSo far, action to transition to a circular economy has been slow compared to the current crisis which has mobilized rapid global action. For proponents of transitioning to a circular economy, this requires taking the long view. The pandemic has shown us that global emergencies can fast-forward processes that otherwise might take years, even decades, to play out or reverse achievements which have taken years to accomplish.In this vein, there are three striking points of convergence between the COVID-19 pandemic and the need to transition to an inclusive circular economy.Firstly, the current crisis is a stark reminder that the circular economy is not only necessary to ensure long-term resource security but also short-term supplies of important materials. In many cities across the US, the UK and Europe, councils have suspended recycling to focus on essential waste collection services. The UK Recycling Association, for example, has warned about carboard shortages due to disrupted recycling operations with possible shortages for food and medicine packaging on the horizon.Similarly, in China, most recycling sites were shut during the country’s lockdown presenting implications for global recycling markets with additional concerns that there will be a fibre shortage across Europe and possibly around the world.Furthermore, worldwide COVID-19 lockdowns are resulting in a resurgence in the use of single-use packaging creating a new wave of plastic waste especially from food deliveries – already seen in China – with illegal waste fly-tipping dramatically increasing in the UK since the lockdown.In this vein, concerns over the current global health crisis is reversing previous positive trends where many cities had established recycling schemes and companies and consumers had switched to reusable alternatives.Secondly, the need to improve the working conditions of the people working in the informal circular economy, such as waste pickers and recyclers, is imperative. Many waste materials and recyclables that are being handled and collected may be contaminated as a result of being mixed with medical waste.Now, more than ever, key workers in waste management, collection and recycling require personal protective equipment and social protection to ensure their safety as well as the continuation of essential waste collection so as not to increase the potential for new risks associated with additional infectious diseases.In India, almost 450 million workers including construction workers, street vendors and landless agricultural labourers, work in the informal sector. In the current climate, the poorest who are unable to work pose a great risk to the Indian economy which could find itself having to shut down.Moreover, many informal workers live in make-shift settlements areas such as Asia’s largest slum, Dharavi in Mumbai, where health authorities are now facing serious challenges to contain the spread of the disease. Lack of access to handwashing and sanitation facilities, however, further increase these risks but circular, decentralized solutions could make important contributions to sustainable sanitation, health and improved community resilience.Thirdly, it is anticipated that in the long term several global supply chains will be radically changed as a result of transformed demand patterns and the increase in circular practices such as urban mining for the recovery and recycling of metals or the reuse and recycling of textile fibres and localized additive manufacturing (e.g. 3D printing).Many of these supply chains and trade flows have now been already severely disrupted due to the COVID-19 pandemic. For example, the global garment industry has been particularly hard-hit due to the closure of outlets amid falling demand for apparel.It is important to note, workers at the bottom of these garment supply chains are among the most vulnerable and most affected by the crisis as global fashion brands, for example, have been cancelling orders – in the order of $6 billion in the case of Bangladesh alone. Only after intense negotiations are some brands assuming financial responsibility in the form of compensation wage funds to help suppliers in Myanmar, Cambodia and Bangladesh to pay workers during the ongoing crisis.In addition, the current pandemic is damaging demand for raw materials thereby affecting mining countries. Demand for Africa’s commodities in China, for example, has declined significantly, with the impact on African economies expected to be serious, with 15 per cent of the world’s copper and 20 per cent of the world’s zinc mines currently going offline. A further threat is expected to come from falling commodity prices as a result of the curtailment of manufacturing activity in China particularly for crude oil, copper, iron ore and other industrial commodities which, in these cases, will have direct impacts on the Australian and Canadian mining sectors.This is all being compounded by an associated decline in consumer demand worldwide. For example, many South African mining companies – leading producers of metals and minerals – have started closing their mining operations following the government’s announcement of a lockdown in order to prevent the transmission of the virus among miners who often work in confined spaces and in close proximity with one another. As workers are laid off due to COVID-19, there are indications that the mining industry will see fast-tracking towards automated mining operations. All of these linear risks that have been exposed through the COVID-19 pandemic reinforce the need for a just transition to a circular economy. But while the reduction in the consumption of resources is necessary to achieve sustainability, the social impacts on low- and middle- income countries and their workers requires international support mechanisms.In addition, the current situation also highlights the need to find a new approach to globalized retail chains and a balance between local and global trade based on international cooperation across global value chains rather than implementation of trade protectionist measures.In this vein, all of the recovery plans from the global COVID-19 pandemic need to be aligned with the principles of an inclusive circular economy in order to ensure both short-term and long-term resilience and preparedness for future challenges and disruptions. Full Article
in UK-China Cooperation on Climate Change Risk Assessment By feedproxy.google.com Published On :: Fri, 17 Apr 2020 12:34:35 +0000 The project purpose is to ensure emissions reduction and resilience strategies, policies and decision-making - both in China and globally - are better informed by an evidence-based perspective on climate-change risks. Avoiding the worst economic, social and environmental risks of climate change requires a better understanding of what those risks may be. Decision-makers need information on the full range of risks that climate change poses, across the full spectrum of probabilities. Monitoring the nature and severity of these risks is essential if decision-makers are to make the right choices about effective mitigation and adaptation responses.To meet this need, international scientists and policy analysts in the UK (including at Chatham House) and China have been engaged in a multi-year, multi-disciplinary, and collaborative research process. This has deepened understandings of how these complex, interconnected first, second and third-order risks can be better assessed and tracked.Phase one, culminating in 2015 and involving experts, demonstrated how general principles of risk assessment could be applied in relation to climate change.Phase two (culminating in 2019) was a bilateral cooperation between the UK and China that was agreed during President Xi Jinping’s state visit to the UK in 2015. It addressed a specific recommendation from phase one - that risk assessments need to be made on a regular and consistent basis - by providing a proof of concept indicator framework.Substantive project funding for phases 1 and 2 was provided by the UK Foreign and Commonwealth Office, with additional contributions and in-kind support from the China Expert Panel on Climate Change, the UK Government Office for Science, the Skoll Global Threats Fund, the Global Challenges Foundation, the UK Institute and Faculty of Actuaries, and Willis Research Network (phase 1); and Chatham House, China Expert Panel on Climate Change, UK Committee on Climate Change, International Energy Agency, Willis Towers Watson (phase 2).Many institutions contributed to the project under phases 1 and 2 (see reports for full list of contributors).Phase 1 report, 2015: Climate Change: A Risk AssessmentPhase 2 report, 2018: Developing Indicators of Climate RiskChatham House now leads a third phase of this project (2020 to 2022), funded by the Prosperity Fund of the UK Foreign and Commonwealth Office. The purpose is to help ensure emissions reduction and resilience strategies, policies and decision-making - both in China and globally - are better informed by an evidence-based perspective on climate-change risks.Under the guidance of the China Expert Committee on Climate Change and the UK Committee on Climate Change, the programme is building on the risk indicator and risk assessment work developed in Phase 1 and 2.This phase of work has four complementary workstreams looking at emissions risks, direct climate risks, systemic climate risks and the integration of climate risks into Chinese and international governance frameworks. Embedded throughout the project is considerations of gender and inclusion(G&I) which are fundamental to achieve climate-compatible development.The programme is delivered through a cohort of partner organisations based in both China and the UK, including Chatham House, E3G (Third Generation Environmentalism), Hubei University of Economics, National Climate Centre of China, Tsinghua University and the University of Reading. Department contact Jiangwen Guo Senior Research Fellow, Energy, Environment and Resources Programme Email Full Article
in COP26 Diplomatic Briefing Series: Climate Change and National Security By feedproxy.google.com Published On :: Tue, 21 Apr 2020 13:25:01 +0000 Research Event 25 March 2020 - 9:00am to 10:30am Event participants Lieutenant General Richard Nugee, Departmental Lead for Climate Change and Sustainability in the UK Ministry of DefenceRear Admiral Neil Morisetti, Vice Dean (Public Policy) Engineering Sciences at the University College London and Associate Fellow at Chatham HouseDr. Patricia Lewis, Research Director for Conflict, Science and Technology, and Director of the International Security Programme at Chatham HouseProfessor Yacob Mulugetta, Professor of Energy and Development Policy at the University College LondonChair: Glada Lahn, Senior Research Fellow, Chatham House Extreme weather, rising sea levels and a melting Arctic - the effects of climate change are posing an increasingly large threat to national security worldwide. Although the issue has gained traction within the international community in recent years, including within the UN Security Council, it is urgent that governments act more decisively to mitigate and respond to the threat, not least given that climate change is happening faster and in a more powerful way than originally anticipated. The third event in the Chatham House COP26 Diplomatic Briefing Series – 'Climate Change and National Security' - will analyze how climate change acts as a threat multiplier, fuelling instability and endangering economic, social and political systems across the globe. The briefing will also provide recommendations of what governments and other stakeholders should do to develop effective responses. Department/project Energy, Environment and Resources Programme, COP26 Diplomatic Briefing Series Anna Aberg Research Analyst, Energy, Environment and Resources Programme 020 7314 3629 Email Full Article
in COP26 Diplomatic Briefing Series: Money Matters: Climate Finance and the COP By feedproxy.google.com Published On :: Tue, 21 Apr 2020 13:25:01 +0000 Research Event 20 April 2020 - 9:00am to 10:30am Event participants Tenzin Wangmo, Lead Negotiator of the Least Developed Countries (LDC) Group Mattias Frumerie, Director at the Swedish Ministry for Foreign AffairsRachel Ward, Programme Director and Head of Policy at the Institutional Investors Group on Climate ChangeIseoluwa Akintunde, Mo Ibrahim Academy Fellow at Chatham HouseChair: Kirsty Hamilton, Associate Fellow, Chatham House Finance plays a key role in enabling climate change mitigation and adaptation. It is also a contested issue in the UN climate negotiations. The fourth event in the Chatham House COP26 Diplomatic Briefing Series will explore the politics of climate finance in the context of the COP, and provide a comprehensive update of the main climate finance-related negotiation items and processes. The topic is particularly timely given that the UK Government has made climate finance one of its top thematic priorities for COP26 and that 2020 constitutes the deadline for developed countries to mobilise USD 100 billion per year to support climate action in developing countries. Department/project Energy, Environment and Resources Programme, COP26 Diplomatic Briefing Series Anna Aberg Research Analyst, Energy, Environment and Resources Programme 020 7314 3629 Email Full Article
in Privileging Local Food is Flawed Solution to Reduce Emissions By feedproxy.google.com Published On :: Thu, 23 Apr 2020 13:59:11 +0000 23 April 2020 Christophe Bellmann Associate Fellow, Hoffmann Centre for Sustainable Resource Economy LinkedIn The COVID-19 pandemic has brought food security and food imports to the forefront again. Some fear that the crisis could quickly strain global food supply chains as countries adopt new trade restrictions to avoid domestic food shortages. 2020-04-23-Trade-Food-Apples Apples being picked before going into cold storage so they can be bought up until Christmas. Photo by Suzanne Kreiter/The Boston Globe via Getty Images. The pressure of the coronavirus pandemic is adding to a widely held misconception that trade in food products is bad for the environment due to the associated ‘food miles’ – the carbon footprint of agricultural products transported over long distances.This concept, developed by large retailers a decade ago, is often invoked as a rationale for restricting trade and choosing locally-produced food over imports. Consuming local food may seem sensible at first glance as it reduces the carbon footprint of goods and generates local employment. However, this assumption ignores the emissions produced during the production, processing or storage stages which often dwarf transport emissions. Other avenues to address the climate change impact of trade are more promising.Demystifying food emissionsIn the US, for example, food items travel more than 8,000 km on average before reaching the consumer. Yet transport only accounts for 11 per cent of total emissions with 83 per cent – mostly nitrous oxide (N2O) and methane (CH4) emissions – occurring at the production stage.US Department of Agriculture data on energy use in the American food system echoes this finding, showing that processing, packaging, and selling of food represent ten times the energy used to transport food.In practice, it may be preferable from an environmental perspective to consume lamb, onion or dairy products transported by sea because the lower emissions generated at the production stage offset those resulting from transport. Similarly, growing tomatoes under heated greenhouses in Sweden is often more emissions-intensive than importing open-grown ones from Southern Europe.Seasonality also matters. British apples placed in storage for ten months leads to twice the level of emissions as that of South American apples sea-freighted to the UK. And the type of transport is also important as, overall, maritime transport generates 25 to 250 times less emissions than trucks, and air freight generates on average five times more emissions than road transport.Therefore, air-freighted Kenyan beans have a much larger carbon footprint than those produced in the UK, but crossing Europe by truck to import Italian wine might generate more emissions than transatlantic shipments.Finally, one should take into account the last leg of transport. A consumer driving more than 10 km to purchase 1 kg of fresh produce will generate proportionately more greenhouse gas (GHG) emissions than air-freighting 1 kg of produce from Kenya.Shifting consumption towards local foods may reduce GHG emissions in sectors with relatively low emissions intensities but, when non-carbon dioxide emissions are taken into account, this is more often the exception than the rule.Under these circumstances, preventing trade is an inefficient and expensive way of reducing GHG emissions. Bureau et al. for example, calculate that a global tariff maintaining the volume of trade at current levels until 2030 may reduce global carbon dioxide emissions by 3.5 per cent. However, this would be roughly seven times less than the full implementation of the Paris Agreement and cost equivalent to the current GDP of Brazil or 1.8 per cent of world GDP.By preventing an efficient use of resources, such restrictions would also undermine the role of trade in offsetting possible climate-induced production shortfalls in some parts of the world and allowing people to access food when they can’t produce it themselves.Reducing the climate footprint of tradeThis is not to say that nothing should be done to tackle transport emissions. The OECD estimates that international trade-related freight accounted for over 5 per cent of total global fuel emissions with shipping representing roughly half of it, trucks 40 per cent, air 6 per cent and rail 2 per cent. With the projected tripling of freight transport by 2050, emissions from shipping are expected to rise between 50 and 250 per cent.Furthermore, because of their international nature, these emissions are not covered by the Paris Agreement. Instead the two UN agencies regulating these sectors – the International Civil Aviation Organization and the International Maritime Organization – are responsible for reducing these emissions and, so far, significant progress has proven elusive.Regional or bilateral free trade agreements to further stimulate trade could address this problem by exploiting comparative advantages. Impact assessments of those agreements often point towards increases in GHG emissions due to a boost in trade flows. In the future, such agreements could incorporate – or develop in parallel – initiatives to ensure carbon neutrality by connecting carbon markets among contracting parties or by taxing international maritime and air transport emissions.Such initiatives could be combined with providing additional preferences in the form of enhanced market access to low-carbon food and healthier food. The EU, as one of the chief proponents of bilateral and regional trade agreements and a leader in promoting a transition to a low-carbon economy could champion such an approach.This article is part of a series from the Chatham House Global Trade Policy Forum, designed to promote research and policy recommendations on the future of global trade. It is adapted from the research paper, Delivering Sustainable Food and Land Use Systems: The Role of International Trade, authored by Christophe Bellmann, Bernice Lee and Jonathan Hepburn. Full Article
in An older man with thoracic back pain By feeds.bmj.com Published On :: Wednesday, November 23, 2016 - 11:01 Full Article
in Healthcare comes to standstill in east Aleppo as last hospitals are destroyed By feeds.bmj.com Published On :: Wednesday, November 23, 2016 - 13:46 Full Article
in Lack of evidence for interventions offered in UK fertility centres By feeds.bmj.com Published On :: Monday, November 28, 2016 - 00:06 Full Article
in Doctor alleged to have performed “designer vagina” surgery won’t be prosecuted By feeds.bmj.com Published On :: Monday, November 28, 2016 - 10:46 Full Article
in Preserving fertility in girls and young women with cancer By feeds.bmj.com Published On :: Wednesday, November 30, 2016 - 23:30 Full Article
in Seven days in medicine: 23-29 November 2016 By feeds.bmj.com Published On :: Thursday, December 1, 2016 - 12:26 Full Article
in Low molecular weight heparin does not prevent VTE after knee arthroscopy, studies show By feeds.bmj.com Published On :: Tuesday, December 6, 2016 - 06:31 Full Article
in Constitutional symptoms in a young person By feeds.bmj.com Published On :: Wednesday, December 7, 2016 - 10:05 Full Article
in Anti-bullying programme is launched by orthopaedic trainees By feeds.bmj.com Published On :: Monday, January 16, 2017 - 08:00 Full Article
in NHS increases efforts to recruit doctors from overseas By feeds.bmj.com Published On :: Tuesday, February 21, 2017 - 08:00 Full Article
in Government recognises contribution of EU workers to the NHS, says health minister By feeds.bmj.com Published On :: Monday, March 20, 2017 - 07:00 Full Article
in Choosing a core surgical training interview skills course By feeds.bmj.com Published On :: Tuesday, August 8, 2017 - 07:00 Full Article
in Covid-19: Home testing programme across England aims to help define way out of lockdown By feeds.bmj.com Published On :: Friday, May 1, 2020 - 12:17 Full Article
in Covid-19’s impact on US medical research—shifting money, easing rules By feeds.bmj.com Published On :: Friday, May 1, 2020 - 13:37 Full Article
in Covid-19 is no worse in immunocompromised children, says NICE By feeds.bmj.com Published On :: Friday, May 1, 2020 - 14:22 Full Article
in Covid-19: Coroners needn’t investigate PPE policy failures in deaths of NHS staff, new guidance says By feeds.bmj.com Published On :: Monday, May 4, 2020 - 10:35 Full Article
in Covid-19: NHS bosses told to assess risk to ethnic minority staff who may be at greater risk By feeds.bmj.com Published On :: Monday, May 4, 2020 - 14:16 Full Article
in Covid-19: GPs have a fortnight to start organising weekly care home reviews, says NHS By feeds.bmj.com Published On :: Tuesday, May 5, 2020 - 11:01 Full Article
in Helen Salisbury: Message in a bottle By feeds.bmj.com Published On :: Tuesday, May 5, 2020 - 11:36 Full Article
in David Oliver: Is abuse towards doctors in government roles unfair? By feeds.bmj.com Published On :: Wednesday, May 6, 2020 - 09:26 Full Article
in Emergency departments must not return to pre-covid days of overcrowding and lack of safety, says college By feeds.bmj.com Published On :: Wednesday, May 6, 2020 - 11:01 Full Article
in Covid-19: Lack of capacity led to halting of community testing in March, admits deputy chief medical officer By feeds.bmj.com Published On :: Wednesday, May 6, 2020 - 12:25 Full Article
in Self-protection: how NHS doctors are sourcing their own PPE By feeds.bmj.com Published On :: Wednesday, May 6, 2020 - 12:25 Full Article
in Covid-19: the challenge of patient rehabilitation after intensive care By feeds.bmj.com Published On :: Wednesday, May 6, 2020 - 12:36 Full Article
in Covid-19: UK death toll overtakes Italy’s to become worst in Europe By feeds.bmj.com Published On :: Wednesday, May 6, 2020 - 13:37 Full Article
in Covid-19: Woman with terminal cancer should be released from care home to die with family, says judge By feeds.bmj.com Published On :: Wednesday, May 6, 2020 - 15:01 Full Article
in Covid-19: Surviving the long road ahead By feeds.bmj.com Published On :: Thursday, May 7, 2020 - 11:51 Full Article
in Covid-19: Trump says added deaths are necessary price for reopening US businesses By feeds.bmj.com Published On :: Thursday, May 7, 2020 - 14:10 Full Article
in Proline-rich 11 (PRR11) drives F-actin assembly by recruiting the actin-related protein 2/3 complex in human non-small cell lung carcinoma [DNA and Chromosomes] By feedproxy.google.com Published On :: 2020-04-17T00:06:05-07:00 The actin cytoskeleton is extremely dynamic and supports diverse cellular functions in many physiological and pathological processes, including tumorigenesis. However, the mechanisms that regulate the actin-related protein 2/3 (ARP2/3) complex and thereby promote actin polymerization and organization in cancer cells are not well-understood. We previously implicated the proline-rich 11 (PRR11) protein in lung cancer development. In this study, using immunofluorescence staining, actin polymerization assays, and siRNA-mediated gene silencing, we uncovered that cytoplasmic PRR11 is involved in F-actin polymerization and organization. We found that dysregulation of PRR11 expression results in F-actin rearrangement and nuclear instability in non-small cell lung cancer cells. Results from molecular mechanistic experiments indicated that PRR11 associates with and recruits the ARP2/3 complex, facilitates F-actin polymerization, and thereby disrupts the F-actin cytoskeleton, leading to abnormal nuclear lamina assembly and chromatin reorganization. Inhibition of the ARP2/3 complex activity abolished irregular F-actin polymerization, lamina assembly, and chromatin reorganization due to PRR11 overexpression. Notably, experiments with truncated PRR11 variants revealed that PRR11 regulates F-actin through different regions. We found that deletion of either the N or C terminus of PRR11 abrogates its effects on F-actin polymerization and nuclear instability and that deletion of amino acid residues 100–184 or 100–200 strongly induces an F-actin structure called the actin comet tail, not observed with WT PRR11. Our findings indicate that cytoplasmic PRR11 plays an essential role in regulating F-actin assembly and nuclear stability by recruiting the ARP2/3 complex in human non-small cell lung carcinoma cells. Full Article
in Single-molecule level structural dynamics of DNA unwinding by human mitochondrial Twinkle helicase [Molecular Biophysics] By feedproxy.google.com Published On :: 2020-04-24T06:08:45-07:00 Knowledge of the molecular events in mitochondrial DNA (mtDNA) replication is crucial to understanding the origins of human disorders arising from mitochondrial dysfunction. Twinkle helicase is an essential component of mtDNA replication. Here, we employed atomic force microscopy imaging in air and liquids to visualize ring assembly, DNA binding, and unwinding activity of individual Twinkle hexamers at the single-molecule level. We observed that the Twinkle subunits self-assemble into hexamers and higher-order complexes that can switch between open and closed-ring configurations in the absence of DNA. Our analyses helped visualize Twinkle loading onto and unloading from DNA in an open-ringed configuration. They also revealed that closed-ring conformers bind and unwind several hundred base pairs of duplex DNA at an average rate of ∼240 bp/min. We found that the addition of mitochondrial single-stranded (ss) DNA–binding protein both influences the ways Twinkle loads onto defined DNA substrates and stabilizes the unwound ssDNA product, resulting in a ∼5-fold stimulation of the apparent DNA-unwinding rate. Mitochondrial ssDNA-binding protein also increased the estimated translocation processivity from 1750 to >9000 bp before helicase disassociation, suggesting that more than half of the mitochondrial genome could be unwound by Twinkle during a single DNA-binding event. The strategies used in this work provide a new platform to examine Twinkle disease variants and the core mtDNA replication machinery. They also offer an enhanced framework to investigate molecular mechanisms underlying deletion and depletion of the mitochondrial genome as observed in mitochondrial diseases. Full Article
in CRISPR-Cas12a has widespread off-target and dsDNA-nicking effects [DNA and Chromosomes] By feedproxy.google.com Published On :: 2020-04-24T06:08:45-07:00 Cas12a (Cpf1) is an RNA-guided endonuclease in the bacterial type V-A CRISPR-Cas anti-phage immune system that can be repurposed for genome editing. Cas12a can bind and cut dsDNA targets with high specificity in vivo, making it an ideal candidate for expanding the arsenal of enzymes used in precise genome editing. However, this reported high specificity contradicts Cas12a's natural role as an immune effector against rapidly evolving phages. Here, we employed high-throughput in vitro cleavage assays to determine and compare the native cleavage specificities and activities of three different natural Cas12a orthologs (FnCas12a, LbCas12a, and AsCas12a). Surprisingly, we observed pervasive sequence-specific nicking of randomized target libraries, with strong nicking of DNA sequences containing up to four mismatches in the Cas12a-targeted DNA-RNA hybrid sequences. We also found that these nicking and cleavage activities depend on mismatch type and position and vary with Cas12a ortholog and CRISPR RNA sequence. Our analysis further revealed robust nonspecific nicking of dsDNA when Cas12a is activated by binding to a target DNA. Together, our findings reveal that Cas12a has multiple nicking activities against dsDNA substrates and that these activities vary among different Cas12a orthologs. Full Article
in Impact of 1,N6-ethenoadenosine, a damaged ribonucleotide in DNA, on translesion synthesis and repair [Enzymology] By feedproxy.google.com Published On :: 2020-05-01T00:06:09-07:00 Incorporation of ribonucleotides into DNA can severely diminish genome integrity. However, how ribonucleotides instigate DNA damage is poorly understood. In DNA, they can promote replication stress and genomic instability and have been implicated in several diseases. We report here the impact of the ribonucleotide rATP and of its naturally occurring damaged analog 1,N6-ethenoadenosine (1,N6-ϵrA) on translesion synthesis (TLS), mediated by human DNA polymerase η (hpol η), and on RNase H2–mediated incision. Mass spectral analysis revealed that 1,N6-ϵrA in DNA generates extensive frameshifts during TLS, which can lead to genomic instability. Moreover, steady-state kinetic analysis of the TLS process indicated that deoxypurines (i.e. dATP and dGTP) are inserted predominantly opposite 1,N6-ϵrA. We also show that hpol η acts as a reverse transcriptase in the presence of damaged ribonucleotide 1,N6-ϵrA but has poor RNA primer extension activities. Steady-state kinetic analysis of reverse transcription and RNA primer extension showed that hpol η favors the addition of dATP and dGTP opposite 1,N6-ϵrA. We also found that RNase H2 recognizes 1,N6-ϵrA but has limited incision activity across from this lesion, which can lead to the persistence of this detrimental DNA adduct. We conclude that the damaged and unrepaired ribonucleotide 1,N6-ϵrA in DNA exhibits mutagenic potential and can also alter the reading frame in an mRNA transcript because 1,N6-ϵrA is incompletely incised by RNase H2. Full Article
in Atomic force microscopy-based characterization of the interaction of PriA helicase with stalled DNA replication forks [DNA and Chromosomes] By feedproxy.google.com Published On :: 2020-05-01T00:06:09-07:00 In bacteria, the restart of stalled DNA replication forks requires the DNA helicase PriA. PriA can recognize and remodel abandoned DNA replication forks, unwind DNA in the 3'-to-5' direction, and facilitate the loading of the helicase DnaB onto the DNA to restart replication. Single-stranded DNA–binding protein (SSB) is typically present at the abandoned forks, but it is unclear how SSB and PriA interact, although it has been shown that the two proteins interact both physically and functionally. Here, we used atomic force microscopy to visualize the interaction of PriA with DNA substrates with or without SSB. These experiments were done in the absence of ATP to delineate the substrate recognition pattern of PriA before its ATP-catalyzed DNA-unwinding reaction. These analyses revealed that in the absence of SSB, PriA binds preferentially to a fork substrate with a gap in the leading strand. Such a preference has not been observed for 5'- and 3'-tailed duplexes, suggesting that it is the fork structure that plays an essential role in PriA's selection of DNA substrates. Furthermore, we found that in the absence of SSB, PriA binds exclusively to the fork regions of the DNA substrates. In contrast, fork-bound SSB loads PriA onto the duplex DNA arms of forks, suggesting a remodeling of PriA by SSB. We also demonstrate that the remodeling of PriA requires a functional C-terminal domain of SSB. In summary, our atomic force microscopy analyses reveal key details in the interactions between PriA and stalled DNA replication forks with or without SSB. Full Article
in Genetic evidence for reconfiguration of DNA polymerase {theta} active site for error-free translesion synthesis in human cells [DNA and Chromosomes] By feedproxy.google.com Published On :: 2020-05-01T00:06:09-07:00 The action mechanisms revealed by the biochemical and structural analyses of replicative and translesion synthesis (TLS) DNA polymerases (Pols) are retained in their cellular roles. In this regard, DNA polymerase θ differs from other Pols in that whereas purified Polθ misincorporates an A opposite 1,N6-ethenodeoxyadenosine (ϵdA) using an abasic-like mode, Polθ performs predominantly error-free TLS in human cells. To test the hypothesis that Polθ adopts a different mechanism for replicating through ϵdA in human cells than in the purified Pol, here we analyze the effects of mutations in the two highly conserved tyrosine residues, Tyr-2387 and Tyr-2391, in the Polθ active site. Our findings that these residues are indispensable for TLS by the purified Pol but are not required in human cells, as well as other findings, provide strong evidence that the Polθ active site is reconfigured in human cells to stabilize ϵdA in the syn conformation for Hoogsteen base pairing with the correct nucleotide. The evidence that a DNA polymerase can configure its active site entirely differently in human cells than in the purified Pol establishes a new paradigm for DNA polymerase function. Full Article
in The histone H4 basic patch regulates SAGA-mediated H2B deubiquitination and histone acetylation [DNA and Chromosomes] By feedproxy.google.com Published On :: 2020-05-08T03:41:14-07:00 Histone H2B monoubiquitylation (H2Bub1) has central functions in multiple DNA-templated processes, including gene transcription, DNA repair, and replication. H2Bub1 also is required for the trans-histone regulation of H3K4 and H3K79 methylation. Although previous studies have elucidated the basic mechanisms that establish and remove H2Bub1, we have only an incomplete understanding of how H2Bub1 is regulated. We report here that the histone H4 basic patch regulates H2Bub1. Yeast cells with arginine-to-alanine mutations in the H4 basic patch (H42RA) exhibited a significant loss of global H2Bub1. H42RA mutant yeast strains also displayed chemotoxin sensitivities similar to, but less severe than, strains containing a complete loss of H2Bub1. We found that the H4 basic patch regulates H2Bub1 levels independently of interactions with chromatin remodelers and separately from its regulation of H3K79 methylation. To measure H2B ubiquitylation and deubiquitination kinetics in vivo, we used a rapid and reversible optogenetic tool, the light-inducible nuclear exporter, to control the subcellular location of the H2Bub1 E3 ligase, Bre1. The ability of Bre1 to ubiquitylate H2B was unaffected in the H42RA mutant. In contrast, H2Bub1 deubiquitination by SAGA-associated Ubp8, but not by Ubp10, increased in the H42RA mutant. Consistent with a function for the H4 basic patch in regulating SAGA deubiquitinase activity, we also detected increased SAGA-mediated histone acetylation in H4 basic patch mutants. Our findings uncover that the H4 basic patch has a regulatory function in SAGA-mediated histone modifications. Full Article
in Twenty Five Years Later: Reflecting on the Immigration Act of 1990 By www.migrationpolicy.org Published On :: Tue, 08 Dec 2015 14:49:41 -0500 A discussion marking the 25th anniversary of the 1990 Immigration Act, where experts examinine the history of the legislation, how it was accomplished politically, and the stakeholders and issues that were critical to its passage. Full Article
in Farm to Table: The Role of Immigrants in U.S. Farm Labor in 2016 By www.migrationpolicy.org Published On :: Thu, 20 Oct 2016 17:51:15 -0400 A discussion featuring data on immigration trends and the agricultural workforce, and some of the adjustments that farm employers are making, including increased mechanization, improved wages and benefits, and the increased use of the H-2A program. University of California-Davis’s Phil Martin, along with researchers from the the U.S. Department of Agriculture, U.S. Department of Labor, present their findings on the foreign agricultural workforce in the United States, which is followed by comments from the President of Farmworker Justice on some of the policy implications. Full Article