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Successes of the European Climate Change Programme

A review of the European Climate Change Programme has concluded that the initiative has successfully identified cost-efficient policy measures to reduce greenhouse gas (GHG) emissions, allowed consensus-building among key stakeholders, and positioned the European Union as a leader in climate change actions.




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Partially converting fuels into 'syngas' increases energy efficiency

Recent research from China suggests that partially converting both natural gas and coal into 'syngas' fuel for power generation can generate around 6 per cent more electricity than competing 'conventional' gasification methods. The savings arise from more efficient use of the chemical energy in gas and coal which is lost in a conventional burner.




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Tropical land use change: more carbon lost for lower crop yield

Land cleared in the tropics loses nearly twice as much carbon and produces less than half the annual crop yield as land in temperate zones, according to researchers. Their analysis of the trade-off between crop production and the loss of carbon stored in vegetation highlights the need to target reforestation in the tropics.




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Dismal messages about global warming may increase scepticism

Dire messages about the impact of global warming may increase scepticism because they contradict a commonly held belief that the world is a just and orderly place. This is the conclusion of new psychological research which investigated the reaction of individuals to messages about global warming.




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Carbon footprinting errors caused by differences in power supply

The actual carbon footprint of products and services can differ considerably according to how energy used to manufacture the product was generated – for example, whether it was generated by fossil fuel or renewable sources. A recent US study has therefore recommended that differences in regional power supply should be acknowledged by life cycle assessments of products and services.




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Agricultural diversity boosts food security

Diverse agricultural systems can sustainably improve food security and supply a varied, healthy diet for people, according to a recent analysis of the benefits of agricultural biodiversity. The food-based approach, when integrated with other strategies, can be used to tackle malnutrition, micronutrient deficiencies and the impact of climate change on farming.




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Sustainability assessment of different nuclear fuel cycle scenarios

A recent study has assessed the sustainability of different nuclear cycle scenarios in Europe, and suggests trade-offs are required between reducing the amount of uranium fuel needed, costs and proliferation risks.




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‘Self-fuelling’ method could reduce GHGs from oil shale

A potential method for reducing greenhouse gas (GHG) emissions associated with extracting energy from oil shale has been highlighted by a recent study. A ‘self-fuelling’ method that recycles waste gas could cut GHGs emissions by 50% compared to the conventional oil shale product and 70% compared to crude oil.




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Natural fertilisation of sea hints at effects of geoengineering projects

New research investigating the effects of naturally occurring iron fertilisation in the sea suggests that large scale geoengineering projects designed to sequester carbon in the deep sea could have a dramatic impact on marine ecosystems. The study found that the organic matter arriving at the sea floor and the species that live there are very different, depending on whether waters are fertilised by iron leached from nearby islands or not.




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‘Carbon spike’ caused by construction is considerable

The greenhouse gas emissions from the construction of new houses are so high that they exceed the emissions from three decades of use, a Finnish study has found. The research is based on houses complying with recently introduced, energy efficient building regulations. According to the authors, as buildings become more efficient this ‘carbon spike’ associated with construction is more important than has been suggested by previous studies.




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Earthquakes as well as climate change responsible for sea-level rise

Satellite data from the Torres Islands in the southwest Pacific suggest that rising sea-levels in the region widely attributed to climate change is also partly caused by sinking of the islands following earthquakes in the 1990s, according to recent research.




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Climate change could reduce soil’s ability to sequester carbon

Extreme events, such as droughts and prolonged dry spells, under climate change could increase the water repellency of soils, according to a recent study. In the long-term, this could reduce the capacity of soils to sequester carbon.




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Climate and land use change to affect malaria spread in tropical Africa

A recent study has projected changes in the spread of malaria caused by climate change and climate variability in Africa by including the effect of variations in land use on local climate. It concludes that the risk of malaria epidemics is likely to shift from the north to the south of the Sahel, and to highland areas previously free of the disease.




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Coral and mollusc responses to acidified oceans

Coral and mollusc species with an outer layer of protective tissue are more able to withstand acidic seawater than some other species, according to a recent study. However, higher temperatures projected under climate change are likely to worsen the impact of ocean acidification on coral and molluscs, even affecting those that are otherwise resistant to higher levels of acidity.




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Households responsible for 25% of EU GHG emissions, says report

A different picture of greenhouse gas (GHG) emissions can be achieved if responsibility for emissions from different economic sectors is placed with the end energy users, according to a new report from the European Environment Agency (EEA). This approach makes sectors such as households responsible for many emissions that would otherwise be attributed to the energy industry.




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Declining sea ice threatens Arctic marine mammals

The rapid decline of Arctic sea ice has had dramatic effects on seals, polar bears, whales and other marine mammals. Changes in distribution, body condition, reproduction and abundance are all consequences of reduced sea ice that may escalate over the coming decade, according to a recent analysis.




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Arctic methane ‘leak’ could cause abrupt climate warming

For thousands of years, vast amounts of methane – a potent greenhouse gas – have been stored in frozen deposits on land and under the ocean in the Arctic. A new study has found that rapidly rising temperatures are accelerating the release of methane by thawing subsea ‘permafrost’, releasing nearly 8 million tonnes into the atmosphere each year and potentially increasing global warming.




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Bioengineered microbes turn seaweed into biofuels

Turning brown seaweed into biofuels is one option that has been proposed to help meet the world's growing energy demands from renewable sources. Recent research has overcome a major barrier to converting the majority of sugars in seaweed into bioethanol and other valuable products by using genetically engineered bacteria to break down the seaweed.




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European health experts warn of climate change’s effects on disease

Climate change will affect the spread and risk of many infectious diseases in Europe, according to a recent survey of leading health experts. The results suggest that more needs to be done to prepare for the expected changes in infectious disease levels, such as improved monitoring of disease.




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Alaskan ice retreat uncovers new methane seeps

Scientists have found that retreating glaciers and melting permafrost in Alaska are releasing up to 70% more methane – a potent greenhouse gas – than previously thought. If this estimate is true for the rest of the Arctic, this could have serious implications for global warming, say the scientists.




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Wind energy: towards noiseless turbines

Techniques for reducing the noise caused by wind turbines are reviewed in a new study. Noise pollution is one drawback of wind power and restricts where wind farms can be located in relation to people and wildlife. The researchers identify methods that could aid the design of low-noise wind turbines, including modifying the blade’s shape and adding rows of brushes to the edge of the blade.




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Seagrass decline releasing large quantities of carbon

Grasses growing at the bottom of our oceans lock away large quantities of ‘blue carbon’, according to a new study. The results suggest that the soil that seagrass grows on is capable of storing more carbon than soils on land and as a result of the current global decline in seagrass, vast stores of carbon may be being released into the ocean and atmosphere.




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Production and imports of fluorinated greenhouse gases fall in the EU

Production of hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulphur hexafluoride (SF6) decreased by 5% within the EU in 2011, compared with 2010, when measured in absolute, metric tonnes, according to a recent report from the European Environment Agency (EEA). Imports and sales of these powerful greenhouse gases (GHGs) also fell, by 6% and 12% respectively, but exports rose by 5%.




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Greater emphasis of cost savings could reduce home energy use

New insights into energy saving behaviour in the home could help inform measures to ensure the EU meets energy efficiency targets. A new study shows that younger and more educated households have more positive attitudes towards energy conservation, and suggests that greater emphasis of the financial benefits associated with energy savings could help reduce energy use in households that are less-motivated to save energy for environmental reasons.




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Energy efficiency of local food distribution can match globalised systems

Some scientists have suggested that, when all potential inefficiencies are accounted for, local food distribution systems may be less sustainable than globalised systems. However, new research examining the behaviour of participants in local food networks in France suggests that they can be as energy efficient as globalised systems.




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Interactions between species affect their response to climate change

Shifts in species’ ranges are expected under climate change, as organisms move to find suitable conditions. New research in the Mediterranean Sea has found that the way species interact could also have a significant effect on their resilience in a changing climate.




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New product information system increases energy-efficient purchases

In a recent experiment in Norway, electrical appliance stores increased their sales of energy-efficient tumble driers when consumers were made aware of their cheaper lifetime operating costs by shop staff and a new product labelling system.




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Open to all: free online tool to assess buildings’ sustainability in development

A free online system for assessing the sustainability of buildings is due to be launched across Europe in July this year. The tool captures scientific complexity whilst being accessible and easy-to-use, its developers say.




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New guidelines to help implement ecosystem-based adaptation on islands

Climate change is a particular threat to island nations and effective adaptation is vital. A new analysis examines current adaptation measures in tropical Oceania and identifies guidelines for implementing resilient, ecosystem-based adaptation (EbA). Among its recommendations, local communities should be fully involved in planning adaptation measures.




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‘Building with Nature’ increases resilience to climate change

New ecosystem-based solutions which provide flexible resilience to coastal flooding, rather than rigid defences, are needed in the face of global environmental change. A recent study examines a new coastal protection scheme in the Netherlands which reduces ecosystem damage whilst offering resilient defence against flooding. Using this case study, the researchers present a framework for evaluating climate change adaptation measures called ‘Building with Nature’.




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Coastal wetlands can protect against rising sea levels and increasing

Coastal wetlands can substantially reduce erosion, property damage and human deaths in the face of rising sea levels and severe storms, recent research concludes. Understanding whether wetlands can provide effective coastal protection is essential to developing effective climate change adaptation strategies.




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Potential of zero energy buildings for district heating systems assessed

Denmark aims to develop an energy system based only on renewable energy sources by 2050. Energy saving buildings are an essential part of this plan, according to new research, which investigates how excess heat production from net zero energy buildings (NZEBs) can benefit district heating systems and reduce reliance on combustible fuels.




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From grey to green: environmental impact of concretes must be fully assessed

When assessing the environmental impacts of new ‘green’ concretes, care should be taken to ensure that a range of impacts are considered, such as ecosystem damage and water depletion, rather than a sole focus on CO2 emissions, a recent study concludes. It demonstrates that cement incorporating industrial by-products performs substantially better than Portland cement when rated across several classifications of environmental impact.




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Probability of rapid increase in trans-Arctic shipping routes is confirmed

New research on climate-driven reductions in Arctic sea ice has predicted that, by 2040 to 2059, new shipping routes will become passable across the Arctic, linking the Atlantic and Pacific oceans. An increase in traffic has implications for the ecosystems of this fragile area.




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Complexity of glacier ice loss captured in new estimates of sea level rise

Greenland’s four major glaciers could contribute 19 to 30 mm to sea level rise by 2200, according to a new study. The researchers developed a sophisticated model which provides new insight into the effects of climate change on Greenland’s glaciers, by capturing the complex processes involved in their movement and melt.




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Guidelines presented for adapting infectious disease policy to climate change

Climate change may increase the risk of outbreaks of infectious diseases, such as salmonella or tick-borne encephalitis. A new study has outlined five main steps in assessing policies to ensure that they can respond effectively to this challenge and highlights the importance of involving stakeholders at every stage of policy assessment.




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Mapping global sea level rise: new gravity data help provide more accurate predictions

Research from the US helps paint a clearer picture of the extent of global sea level rise, by considering new satellite data on the Earth’s gravity. Its findings support reports of accelerating ice melt and suggest that most of the change in sea levels is caused by receding polar ice sheets and mountain glaciers.




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Offshore wind farm construction noise can displace harbour porpoises

Noise caused by construction of Germany’s first offshore wind farm caused significant habitat disturbance for harbour porpoises, according to a recent study. Its results suggest that porpoises avoided areas up to 20 kilometres from the noise source during construction of the wind farm’s foundations.




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Land uses of different intensities affect soils and the ecosystem services they provide

Agricultural intensification can significantly affect soil ecosystems and the services they provide, new research suggests. Examining soils across Europe, the study demonstrates that high intensity arable land uses have lower diversity and biomass of soil organisms than lower intensity arable or permanent grassland, affecting the carbon and nitrogen cycles in the environment.




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Mediterranean seagrass meadows threatened by increasing sulphide stress

Warmer sea temperatures are increasing the toxic effect of sulphides on seagrass meadows in the Mediterranean Sea, new research reveals. Higher sea temperatures in the region, as projected using climate modelling, will therefore further threaten these habitats which are already declining from the damage caused by other human activities.




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Fracking research needs to consider the bigger picture

Studies on fracking too often focus on its technical aspects, and not the wider environmental, economic and regulatory context needed for political decision-making, according to a review of existing research by a US researcher. The review provides a framework for understanding these complex issues that could benefit the fracking debate and decision-making about fracking more widely.




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Largest Antarctic ice sheet more sensitive to ocean warming than previously thought

The largest ice sheet in the world, the east Antarctic ice sheet, may succumb to climate change faster than thought, according to recent research. Warming ocean currents, triggered by shifting wind patterns, could accelerate melting of the ice sheet, leading to a rise in sea levels, say the researchers.




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Harmful algal blooms in Europe will increase under climate change

Harmful algal blooms may become more common in north western European waters as a result of climate change, according to a new study. The researchers predicted that by the end of this century blooms of two groups of algal species will occur over larger areas and for longer periods every year.




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Herring organs damaged by acidified seawater

Ocean acidification could damage the organs of Atlantic herring, as well as slow their growth and development, recent experiments show. It adds to the list of pressures currently threatening this commercially important species, including over-fishing and marine pollution.




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Mediterranean land degradation threatens food security

Climate change, tourism and population growth are all accelerating land degradation in the Mediterranean region, according to recent research. This can have severe impacts: the amount of available agricultural land per capita in the region could have dropped by half by 2020, compared with 1961, the study estimates. This article was updated 6.11.14 to correct an error in the valuation of ecosystem services provided by Mediterranean coastal wetlands.




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China's energy security strategy

China's strategy for securing its energy supply has been analysed in a new study. The author highlights key aspects of the country's energy security strategy, focusing on overseas investment in oil and development of petroleum reserves and unconventional gas, including fracking.




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Environmental Scenario Planning: what if marine conservation hotspots in NE Atlantic increase under climate change?

Marine biodiversity conservation in the north-east Atlantic needs a combination of more adaptable management strategies and international co-operation, a new study says. This is required to deal with a potential increase in marine conservation hotspots under climate change.




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Severity of wheat diseases likely to increase as CO2 rises

Rising levels of atmospheric CO2 will increase the severity of wheat diseases, reducing yields and threatening food security, a new study suggests. Researchers found that levels of two common wheat diseases increased significantly when plants were grown with elevated CO2. Furthermore, disease levels were even worse when the plants and pathogens had been acclimatised to the higher concentrations of CO2 beforehand.




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New beach database could help protect Black Sea shorelines

The damaging effects of sea-level rise on Black Sea beaches have been estimated in a new study. Diminishing river sediment supply caused by river dams is also an erosion threat. These new results suggest that erosion could cause over 90% of these beaches to retreat by at least 20% of their width. A publicly available database created by the researchers could be useful for developing coastal protection schemes.




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Energy efficiency in low-income households: study explores the role of feedback in reducing energy consumption

Although low-income households consume less energy than wealthier households, they are still keen to learn how to save energy, for both economic and environmental reasons. This is the conclusion of a recent Swedish study which explored the energy-related behaviour of residents on low incomes. It provides insights which could help inform energy-awareness campaigns targeted at this section of the population.