Urban vegetation could have been overlooked as valuable above-ground carbon storage, according to researchers. They estimated that 231,521 tonnes of carbon were stored in above-ground vegetation in a UK city, the majority of which (97 per cent) in trees. This was 10 times the amount estimated from national figures for the same city area.

Technological advances in European cement production could reduce energy consumption by up to 10% and CO2 emissions by 4%, according to a new analysis. The research suggests that initial costs of some of the pending technological improvements could be recouped in as little as a year.

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.

Rising levels of atmospheric carbon dioxide (CO2) is likely to cause some soils to release large quantities of two potent greenhouse gases (GHGs), nitrous oxide and methane, according to a recent analysis. The results suggest that the contribution of soils and terrestrial ecosystems to slow climate change has been overestimated.

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.

Permafrost and wetlands in high latitudes could switch from carbon sink to carbon source by the end of the century, according to a recent study. Using a model of terrestrial ecosystems that showed how carbon is stored and released in soils at high latitudes, researchers revealed that climate change could cause these soils to release much more carbon than previously predicted.

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.

A new study provides an approach for estimating the risk of antibiotic contamination associated with different soils and different antimicrobial products. The researchers estimated and mapped soil contamination risk across Europe and suggest that their methods could be used to inform antibiotic resistance monitoring or policies designed to reduce contamination.

Coral reef formation is already decreasing worldwide. A new study predicts that formation will drop to 60% of its natural rate if anthropogenic CO2 emissions continue to rise over the next century and keep acidifying the oceans.

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.

A new study has explored how cities can create a low carbon future by presenting an approach to stakeholder engagement that develops scenarios of an ideal city. Rather than projecting towards a low carbon target for the future, the study suggests that ‘backcasting’ to the present day from these scenarios may provide a useful goal-orientated approach to environmental planning in cities.

Adapting to climate change is essential to protecting populations against extreme weather events, but is it adequately integrated into civil protection policy? A new study has analysed the level of integration in Norway, Sweden and the Netherlands and provided broad recommendations for improvement.

Residents living within half a mile of unconventional natural gas wells may have an increased risk of illness from exposure to air pollution from the wells, according to a recent study. The peer-reviewed study recommends that risk prevention efforts to minimise impacts on human health should concentrate on communities living and working close to wells during well completions and that further studies on health effects of exposures to air emissions from such projects should be carried out.

Regulators should establish a process to consider the full lifecycle greenhouse gas (GHG) emissions of electric vehicles, according to a new US study. This would help ensure that vehicle emissions regulations are placed on a sound scientific basis, manufacturers continue to improve the efficiency of electric vehicles, and the full benefit of regulations to limit GHG emissions from vehicles are realised, say the researchers.

A recent study has explored how national regulations and culture, company size and experience with weather incidents have influenced adaptation to climate change in electricity distribution companies in Norway and Sweden. Smaller companies in a strongly regulated environment, with less experience of extreme weather events, find it more difficult to pursue climate change adaption results,

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%.

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.

How does climate change cause extinction? An extensive analysis of the available evidence has explored this question and concluded that climate change’s effects on the interactions between species is likely to be the main reason for local extinctions. For example, climate change may lead to the loss of prey for predators.

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.

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.

Researchers have found that ocean acidification leads to changes in the ways that clownfish normally respond to sound. As many species rely on hearing for orientation, habitat selection, avoiding predators and communication, ocean acidification could compromise auditory behaviour crucial for survival.

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.

Conserving salt marshes helps protect our coasts, according to research which shows that they stabilise shorelines and protect them from damage by incoming waves. Their benefits are particularly significant in light of the destruction caused by storms and flooding, which are likely to increase under climate change.

The growing use of Information and Communication Technology (ICT) services is producing an increasing amount of greenhouse gas (GHG) emissions. New research has proposed a network model spanning Europe, USA and Canada that uses ‘cloud computing’ to supply renewable energy to IT data centres.

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.

Periods of slow growth observed in coral reefs in the Caribbean are caused by aerosols in the air from pollution and volcanic activity, recent research suggests. Aerosols cause cooler sea surface temperatures and reduce the amount of sunlight reaching the coral, both of which slow coral growth.

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.

Researchers have used a new comprehensive life cycle approach to estimate greenhouse gas (GHG) emissions from road construction. When applied to four projects in Spain, the results suggest improvements could be made in the use and efficiency of off-road machinery, the choice of materials and restoration of ecosystems.

Elderly people are at particular risk from the damaging health effects of hot summers in European Mediterranean cities, such as Athens, Barcelona and Lisbon, but in North African and Middle-Eastern Mediterranean cities, such as Tunis and Tel-Aviv, younger people are more vulnerable, a recent study concludes. This is particularly concerning, the researchers suggest, given the insufficient resources available to deal with this public health problem in some countries.

Warming of coastal areas due to climate change is already having an important impact on fishing catches in the North Atlantic, according to a new study. The study also suggests that rising levels of nitrogen pollution, due to run-off from farming and sewage disposal, will pose a serious threat to fisheries in the near future if left unchecked.

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.

A community-level initiative in the UK has successfully used social marketing techniques to encourage participants to reduce their greenhouse gas emissions. On average, participants reduced their emissions footprint by 2 tonnes every year. Based on the initiative, the authors of this study propose a framework to guide future community engagement.

Concrete and asphalt's environmental impact could be reduced by over a third through changes to manufacturing processes and the use of alternative raw materials, according to research. A scenario study based on life cycle analysis has indicated that using alternative types of cement in concrete and producing asphalt at lower temperatures could substantially improve the green credentials of these two common building materials.

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.

Deep-water fish living along the Irish-UK continental slope remove more than a million tonnes of CO2 from the atmosphere each year, according to a recent study. Continental slope ecosystems play an important role in carbon sequestration, which should be considered before exploiting deep-water resources, say the researchers.

Ocean acidification may affect sharks’ sense of smell, causing them to avoid food, reports new research. In lab tests, the study found that sharks exhibited less feeding behaviour when they were kept in tanks of acidified seawater. These changes could pose a risk to the health of sharks, with knock-on effects for whole marine ecosystems.

Over 75 000 regulatory inspection reports for over 32 000 oil and gas production wells drilled in Pennsylvania, US between 2000 and 2012, have been analysed in a recent study. In these reports, the inspectors logged six times as many incidents of damage to the walls of shale gas and oil wells than in wells for conventional oil and gas.

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.

The greenhouse gas (GHG) emissions produced during the decommissioning phase of nuclear power plants may have been underestimated in previous assessments, new research suggests. The study estimated that the decommissioning process for a German plant resulted in 1 651 265 tonnes of CO₂ (or equivalent) emissions, or 0.825 tonnes of CO2 equivalent per tonne of waste. While the researchers acknowledge that impact is highly dependent on the unique characteristics of each decommissioning project, these results raise questions as to whether this phase has been accurately assessed in earlier research.

Ensuring successful public engagement in policy can be difficult. Four key challenges – communicating complexity, providing balanced information, creating space for deliberation and accessing broader values – are highlighted by a new study. Its authors show how they dealt with these challenges in a UK programme, designed to gather public views on the future of national energy policy.

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.

The benefits of CO₂ cuts made now, such as avoided floods and droughts, will be felt within the lifetimes of most people alive today, new research indicates. The study’s authors say their work dispels myths that the main effects of CO₂ emissions will not be felt for many decades. They estimate that it could take 10 years for the maximum warming effects of a one-off CO₂ emission to occur.

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.

Science not communicated is said to be science not done, but journalists’ portrayal of scientific findings can sometimes have a negative impact on public perceptions of science and even create false controversy. This study examined how presenting opposing scientific viewpoints affects public perceptions of environmental risk.

Native soils are thought to take up more of the greenhouse gas methane than land used for farming. This study shows that, while agriculture can exert an adverse impact on soil methane uptake, the application of soil conditioners like compost may compensate for loss of the methane sink function. The researchers propose new land management strategies based on this finding

A number of studies have shown that the public misunderstand global warming. Taking a fresh approach, this study investigated the willingness of the public to take part in activities that mitigate climate change. An international survey of 24 countries revealed that this is strongly related to personal experiences with global warming. The authors say linking actions to benefits could encourage climate change mitigation behaviour.

While extreme environmental events — such as floods and tsunamis — may trigger migrations, the underlying drivers of migration are far more complex and diverse, says new research. The research reviewed the available evidence on population movements associated with extreme weather events and found that people could find themselves ‘trapped’ and vulnerable, whether they stayed at their homes or moved to new locations.

Restaurants can influence consumer food choices by offering climate-friendly meals on their menus, a recent study concludes. In a trial at Finnish restaurants, customers and staff were receptive to selecting meals based on the carbon footprints of their ingredients. Appearance, taste and healthiness were priority factors in consumers’ choices. The research highlights the importance of planning communication strategies and the need for a carbon footprint food database.

The risk of drought in the Norrström drainage basin, Sweden, increased during the 20th century, a new study has found. As the frequency of the dry periods increased, less water was available in the landscape for agriculture and for the resupply of groundwater — despite an increase in precipitation in the area over the same period. The researchers reached this conclusion after screening soil moisture conditions in the basin over the course of the century.

The solar energy market is hampered by multiple barriers to adoption in the EU and worldwide, according to a new review. Researchers from Sweden and Spain found that lack of government commitment as well as various sociotechnical, management and economic barriers prevent photovoltaic technologies from being more readily adopted.