Vehicle fuel economy has markedly improved, but there are other factors that influence fuel consumption and transport emissions, according to new research on the EU, USA and Japan. Changes in vehicle size and power also play a role indicating that, if fuel prices do not keep rising, policy focus may need to shift to managing vehicle use.

The promotion of diesel-fuelled cars in Europe may not have had the beneficial environmental effects that were expected, research suggests. It has been assumed that they help reduce greenhouse gas (GHG) emissions from the transport sector, but studies show that their fuel efficiency is lower than previously believed, while their black carbon and nitrogen oxides emissions are higher. The consequent reduction in global warming effects from diesel cars may therefore be negligible, perhaps even negative.

What drives people to behave in more environmentally friendly ways? A new study explores factors that affect Dutch motorists’ intentions to switch to electric vehicles. The authors found that they could reliably predict the intention to switch by applying a theoretical framework—Protection Motivation Theory—based on perceptions of the threat of environmental damage.

People who live in the most ‘activity-friendly’ neighbourhoods do up to 1.5 hours more physical activity a week than those in the least supportive neighbourhoods. This is according to a new international study which measured levels of exercise — mainly walking for recreation or transport — in relation to the urban environment across 14 diverse cities. The results show how urban design — such as parks and local amenities — can promote healthy lifestyles which also bring environmental benefits, such as better air quality, through reduced car use.

How are Denmark, Finland, Iceland, Norway and Sweden moving towards renewable and lower-carbon energy use? A recent study suggests the key areas for progress, to ensure Nordic countries meet low carbon goals, include more renewable and decentralised electricity supply, the development of low-carbon transport systems, improved energy efficiency in building design and industrial use of carbon capture and storage.

Hybrid and electric vehicles emit lower levels of carbon dioxide and air pollutants than conventional petrol and diesel vehicles, yet their market uptake in the EU remains limited. New research provides an assessment of the Total Cost of Ownership (TCO) — which combines purchase and operating expenses — of different vehicle types. By comparing historical data on hybrid, petrol and diesel vehicles in three countries (Japan, the UK and the USA), researchers found a strong link between TCO and market share of those vehicles. They also identified a number of ways in which policymakers may promote the adoption of cleaner vehicles through the provision of financial incentives.

In the automobile industry, the development and manufacture of increasingly complex technological components — catalytic converters, LEDs, electric motors, batteries — requires increasingly complex and diverse raw materials with specific qualities. The technological and economic importance of these materials, combined with their vulnerability to supply shortages and likelihood of supply interruptions, indicates their ‘criticality’. This study uses a new methodology to explore the criticality of 27 key metals used in the automotive industry and other sectors, and highlights six that are especially vulnerable: rhodium, dysprosium, neodymium, terbium, europium and praseodymium. The researchers found there was limited recycling and substitution of these metals and a high possibility of restrictions to their supply.

Waiting for a computer or cluster to finish a task is about as exciting as watching paint dry. XKCD even has a comic about it.... read more >>

New research highlights that potential to use forest materials as bioenergy to reduce greenhouse gas (GHG) emissions from fossil fuel use must be balanced against the role played by forest stocks as carbon storage facilities.

Researchers have identified a possible way of reducing the survival rate of the pine processionary moth, a destructive pine forest pest. Including patches of broadleaf trees in pine woodland could trick the caterpillars into pupating in soil that is unsuitable for their survival.

According to a new analysis by Swedish researchers, action to reduce the impact of several serious forest diseases is typically taken too late. The researchers call for better communication by biologists of how and why diseases spread, to help minimise economic and ecological losses.

Understanding the social context of Swedish forestry is key to understanding how the sector could be persuaded to move beyond ‘business-as-usual’ practices, to prepare for future climate risks, argues a new study. Using an approach that provides insights for future behavioural change more widely, the researchers explore the influences on forest managers’ behaviour, and highlight certification schemes as one important driver of actions which make forests better adapted to climate change. Knowledge on climate change risks and actions in itself is not enough to change behaviour, the study finds. For many environmentalists it may seem ‘logical’ for forestry to adapt now to future climate change: it epitomises an industry where actions taken today will determine long-term development, given that trees will not be harvested until 70–90 years after planting. However, the sector has taken limited actions to adapt, despite an abundance of available information on the impacts of climate change — such as storms, drought and changes in insect population.

Forest root systems increase soil strength and stability, thus protecting mountainous regions against gravitational natural hazards, such as landslides. However, tree roots are affected by factors such as soil properties, climate and disturbances, such as timber-harvesting or wildfire — and, as a result, a forest’s stabilising effect can vary greatly. This study of fire-disturbed beech forests explores how this effect changes over time. The results reveal that forests which have suffered moderate and severe wildfires completely lose their protective function within 15 years, placing those regions at high risk of landslide for up to 50 years after the fires.

Research has investigated whether the strictness of environmental legislation in different countries influences where industries choose to be located in Europe. Some evidence of the 'pollution haven' effect was found, but other factors determining industry location were often more influential.

Researchers have developed a method to assess the sustainability of regeneration projects that could potentially be administered by a computer. The method tailors the universal goals of sustainability to specific local conditions.

Adopting the Green Economy approach will reap greater environmental, social and economic benefits, compared with a society that focuses on economic growth as the measure for future development, according to a recent UN report. Using two per cent of global GDP to ‘green’ key sectors could be enough to trigger the transition towards a green economy.

UN-REDD+ programmes that promote the sustainable use of forests may support local conservation and poverty alleviation goals, in addition to achieving global climate change benefits, according to a recent study. Existing multilateral funding schemes can provide important lessons for the development of UN-REDD+.

Europe could struggle to meet the target set by the renewable energy sector of 25% of electricity produced by solar energy by 2040 because the supply of materials, including rare metals, needed to produce photovoltaics (PV) is unlikely to meet demand. Production rates need to be drastically improved, according to a new study.

A recent international study has compared different Integrated Coastal Zone Management (ICZM) methods and suggests that improved enforcement and compliance would increase implementation of key strategies. It also highlights the potential for environmental impact assessments (EIAs) to develop science and policy integration.

China does not export cars to Europe, yet it has adopted the Euro emissions standard for vehicles. A recent study argues this is because international standards can encourage foreign investors to share advanced technical knowledge with companies in developing and emerging economies – thus bringing a package of environmental and economic benefits. In China’s case, its car industry is now better prepared for future trade in a global market, thanks to this strategy.

Many EU businesses are failing to cover the net cost of recycling packaging waste, new research suggests. Industry is required to take responsibility for treating and recycling waste packaging in the EU; however, this study shows that producers in France, Portugal and Romania do not fully cover waste management costs.

A pilot Marine Spatial Planning (MSP) project in the UK has found MSP to be a useful approach in managing marine waters sustainably. Sharing the knowledge and experiences gained in developing the Shetland Islands’ Marine Spatial Plan (SMSP) can help other authorities in the process of developing similar plans, says the project team.

Plans for new Marine Protected Areas (MPAs) need to consider social impacts alongside economic and environmental impacts, according to a recent study, which found that an MPA in the UK has increased some tensions within its local community. The researchers suggest that collaborative management could also help increase support for MPAs and reduce stakeholder conflict.

A human rights ‘protection gap’ exists for people forced to migrate by environmental stress and climate change, according to researchers. The lack of a legal framework and practices to protect ‘environmental refugees’ stems from the historic and political context of migration issues — and land access rights more broadly — the researchers say in a recently published paper.

Marine protected areas (MPAs) are widely used to safeguard marine ecosystems across Europe. This study investigated the effect of a partially protected area (PPA) off the coast of Norway on a population of Atlantic cod (Gadus morhua). The PPA reduced the number of deaths due to fishing, increased survival and stimulated movement to surrounding areas. The authors say that preventing fishing altogether would increase survival even further and recommend no-take zones in areas where populations are severely reduced.

Marine protected areas (MPAs) have well-reported ecological benefits, but may also have important socioeconomic effects on local communities. Existing methods to assess these effects have been hampered by a number of limitations. This paper describes a new framework to monitor and assess the socioeconomic effects of MPAs, which overcomes many of these limitations to provide greater value for decision makers.

Effective risk governance is important when developing new technologies. This study assessed the approaches to governance of nanotechnology in Europe, based on a comprehensive review of literature and practices, complemented by discussions with key stakeholders. The study provides a new analytical framework for exploring the strengths and weaknesses of governance strategies and makes recommendations specific to nanotechnology.

Greenbelt policies in Germany, used to curb urban sprawl, are effective in protecting open spaces and the valuable natural resources they cover, a new study has found. Nevertheless, urban development can ‘leapfrog’ greenbelts, hopping over them into areas with less restrictive planning policies. Researchers recommend that such areas are also included in urban development control plans.

Norway has the highest battery-electric vehicle market share of any country worldwide. A new study investigated the incentives that have persuaded consumers to purchase electric vehicles in Norway, revealing that up-front price reductions (such as exemptions from purchase tax) are the most powerful incentives.

The concepts of instrumental value (protecting nature for humans’ sake) and intrinsic value (protecting nature for nature’s sake) are fundamental to environmental policy. This paper — based on a literature review and critical analysis — argues that using these concepts alone overlooks important concerns for the environment. The authors recommend also considering relational values, which derive from the relationships between people and nature.

To better understand the social and ecological implications of the non- food sector of the EU’s expanding bioeconomy, an economy which is based on the production and conversion of renewable biological resources into products and energy, a study has assessed the global cropland footprint of the region’s non-food products. The results show that the EU was the world’s biggest consumer and importer of these products from 1995 to 2010: two-thirds of the cropland required to satisfy the EU’s non-food consumption is located elsewhere in regions including China, the USA and Indonesia, bringing potential impacts for distant ecosystems. These findings can inform EU policymaking and support the EU Bioeconomy Strategy.

A new study has analysed how to reduce the environmental footprint of EU trade by preferentially importing goods from countries that have greener production processes. The study concludes that the environmental impacts of 200 product groups imported into the EU could be considerably reduced in this way. For example, water consumption caused by these imports could be cut by 72%, and land use by 65%.

Carbon footprints are an established means of communicating one aspect of a product's environmental impact. New research suggests additional 'nitrogen footprints' for food products could give consumers a more informed choice and help reduce eutrophication in water. However, it warns that there are environmental trade-offs for some food groups, for example, oil products have a small nitrogen footprint, but a fairly large carbon footprint.

Phosphate is added to domestic drinking water to reduce lead levels in the UK, to help meet EU Drinking Water Directive standards. New research has now found that phosphate can also reduce the amount of copper in domestic sewage by more than a third. This method could help Member States meet forthcoming “safe” levels for water discharged to the environment, under forthcoming EU Water Framework Directive (WFD) proposals.

Collecting, or ‘harvesting’ rainwater may help society cope with a number of problems, such as water shortages, flooding and the degradation of urban streams. Urban roofs make up about half of the total sealed surface (‘unnatural’ surfaces, which cover over natural surfaces, such as soil) in cities and contribute the most to stormwater run-off, which could be harvested for other purposes. To maximise this potential, it is useful to know which type of roof can harvest the greatest amount of good quality water.

Measures designed to reduce levels of methane and black carbon in the atmosphere could help bring climate change under control more quickly than CO2 targeting measures alone, according to a new study. The researchers also predict wider benefits for human health and food security from methane-targeted measures.

Scientists have modelled the potential benefits of decentralised flood protection (DFP) in Central Europe and conclude that it could be a significant step towards natural flood management in the EU.

A new method of determining water flow in complex river basins has been developed that balances ecosystem protection with the legal rights to use water by hydropower operators, farmers and municipalities. A recent study has applied this method to a new river basin management plan in Spain.

Reservoirs of water stored under the earth’s surface, otherwise known as groundwater, are a valuable resource. However, using a footprinting method, a new global study has indicated that about 1.7 billion people live in areas where groundwater is being used more quickly than it can be replenished.

Researchers have proposed a new framework to assess the potential for redeveloping large contaminated brownfield sites. The framework applies a range of spatial assessment methods to analyse remediation costs, economic value and the sustainability of different land-use types, and to recommend suitably mixed land-use options for redevelopment.

The majority of respondents to a recent, large-scale European survey claim not to have prepared themselves for floods, even though they know their property is at risk of flooding and they are worried about the effects. A set of key recommendations for flood communications wrer developed from the survey’s findings, intended to improve community preparedness as part of effective flood management plans.

Measures to protect biodiversity can also improve carbon storage and water flow regulation, research indicates. In a Spanish protected area, researchers mapped biodiversity, carbon storage and water flow regulation, and found there was substantial overlap between the three.

The socio-economic costs and benefits of adaptation to river flooding caused by climate change have been assessed in a new study. According to the study, adaptation measures could save €53.1 billion every year in flood-related losses across Europe by 2080.

Mediterranean Marine Protected Areas (MPAs) provide important habitats for the yelkouan shearwater, a species of conservation concern, new research concludes. The study examined the behaviour of the birds at sea and found that they used MPAs extensively as foraging grounds.

Despite tap water being freely available and safe in many countries, bottled water is widely consumed around the world. This has negative effects on the environment, including water wastage and pollution. This study assessed beliefs about purchasing bottled water and tested three strategies to change behaviour, showing that combining persuasive information and social pressure can create the most positive intentions to reduce consumption.

Water scarcity is an important cause of low crop yields worldwide. Yields could be significantly improved by focusing attention on unproductive water losses and improving retention of plant-available water in soils, and particularly the largely unexplored interactions between soils and roots. A new review of scientific literature sets out key soil management measures for crops under drought conditions.