New research has identified 25 variables that influence noise in urban areas. By combining these into an equation, the study produced an accurate tool to describe urban sound environments that could be useful in urban planning.

New research has analysed some of the issues around the implementation of the EU's Environmental Noise Directive (END) by Member States. It demonstrated large differences in the way noise levels are calculated and geographically mapped between countries and called for more standardised and clearer guidelines.

The World Health Organisation (WHO) has set the European target limit of outdoor night noise levels at annual average of 40 decibels (dB) in its new guidelines. This would protect the public, including the most vulnerable, such as children and the elderly.

New research has reviewed the Irish implementation of the first phase of the EU Noise Directive. So far 31 different organisations have been involved and this will increase throughout the second phase of the Directive's implementation. More standardisation is needed to harmonise activities, perhaps by establishing a national expert steering group.

A recent study suggests that exposure to aircraft noise during the day has a greater impact on cognitive ability in children than sleep-disruption caused by exposure to aircraft noise during the night. Protective policy is therefore likely to be most effective if focused at the school level.

New research in Spain has explored solutions to reducing traffic noise, and suggests that the best option is to combine global measures, such as speed restrictions, and local measures, such as noise screens.

A new study has assessed the annoyance caused by a combination of noises typically found on an industrial site. The results could help improve total noise annoyance prediction models. For example, it was found that ‘broadband’ noises, which consist of a wide range of frequencies, lead to more annoyance if they are combined with a specific additional set of low frequency noises, which can lead to an overall identical noise level.

It is difficult to compare estimates of noise exposure across EU Member States because the methods used to produce the data vary between countries. A new study has investigated five methods of estimating noise exposure and identified some of the reasons for variation in the data they produce.

Ship noise increases shore crabs’ metabolism, a new study suggests. The researchers found that larger crabs were particularly affected by recordings of ship noise in controlled experiments. Increased metabolism is a sign of stress and could potentially reduce the growth of crabs and have implications for their survival, as well as for fisheries.

People living close to road, rail and aircraft noise are likely to experience negative health effects. Long-term noise exposure may lead to problems with their heart and circulatory (cardiovascular) system and night-time noise is particularly disruptive of sleep patterns, which in turn may lead to cardiovascular health problems, a review of research into the effects of noise on cardiovascular diseases has found.

People who are annoyed by environmental noise are also more likely to suffer from depression and anxiety, a new, large-scale study from Germany suggests. The results do not prove that noise causes mental health issues but suggest a possible link, which the study’s authors are exploring further. Of all the types of noise considered in the study, aircraft noise was reported to be the most annoying.

A recent Spanish study has examined the implications of corporate social responsibility (CSR) strategies in small and medium enterprises (SMEs) related to sustainable development, as well as the role public administrations play in this process. The findings offer ideas that could be included in government policies aimed at promoting social responsibilities and sustainability, especially for SMEs.

Methods for assessing the sustainability of tourist destinations have been developed. In a new Spanish study, researchers describe a framework for analysing sustainability that is designed for policymakers and tourism managers, and, as a case study, apply it to the region of Andalusia.

Companies that adopt the environmental management system ISO 14000, designed to help reduce businesses’ environmental impacts, generally back this up with sincere investment in environmentally-friendly practices, research suggests. Researchers found that adoption of the ISO 14000 was not ‘greenwash’, but reflected a move towards more sustainable practices in both European and North American companies.

Standards for environmental management, such as EMAS and ISO 14001, aim to help organisations become more sustainable, but they have received little evaluation. A new Italian study is the first to quantitatively compare the impacts of these two standards. Its results suggest that EMAS's stipulation that organisations must report their ongoing performance may bring sustained environmental benefits in the longer term.

There is greater potential for non-governmental organisations (NGOs) to influence the environmental responsibilities of small and medium enterprises (SMEs), suggests new research in Hungary. The study says that environmental policymakers should consider how they could enhance SME-NGO relations.

The factors enabling eco-innovation have been analysed across 19 European countries in a new study. Regulations and environmental subsidies were found to be more important factors in Eastern Europe than in wealthier Western European countries. External research and development (R&D) was also more relevant in Eastern Europe, demonstrating the need for specific technology transfers from other countries and competitors.

Researchers have developed a straightforward approach to help small to medium enterprises (SMEs) analyse their energy use and increase efficiency. They tested the methodology on 280 businesses in Europe, which, as a result, invested more than €10m in energy-saving measures. The measures reduced energy use by 6 500 toe (tonnes of oil equivalent) per year and avoided 13 500 tonnes of CO2 emissions.

Risk analysis and technology assessment (RATA) involves assessing the possible human, environmental and societal risks of a novel technology at various stages of the development process. However, best practices for RATA’s successful incorporation into large-scale research programmes are still in development. In a recent study, researchers present a case study of their efforts to bring RATA into practice within a large Dutch nanotechnology consortium. By outlining the procedures and products they developed and reflecting on their experiences, the researchers provide valuable insights for the future integration of RATA in technology development projects. The findings are relevant to stakeholders with an interest in supporting the design of key enabling technologies, including governmental agencies and industrial partners.

Sustainability in the production of goods and services could be encouraged by replacing value-added tax (VAT) with ‘DaVAT,’ a damage and value-added tax, a new study suggests. This tariff is partly based on a life-cycle assessment (LCA) of goods and services and varies from high (products deemed to seriously harm the environment and human health) to low (those with a lesser impact). The researchers propose a novel way to convert VAT into DaVAT and provide a new policy tool, based on LCA, that can be applied by any country wishing to reform its consumption tax system and move towards a more sustainable future.

Researchers have developed a methodology that allows the analysis of how an existing product design meets design guidelines required for the circular-economy perspective, and which guidelines would need to be incorporated to create a better circular-design product. The results, based on a case study of small electrical equipment in Spain, indicate that the most urgent priority is to incorporate circular-design guidelines related to extending life span and to product/components re-use, while there is a moderate need to include guidelines related to the use of simple removable connections or a modular product structure.

It is possible to design long-term coastal defence strategies that can be adapted to a range of potential climate change impacts, if prevention measures are considered over larger rather than smaller coastal scales, according to recent research.

A new study highlights the environmental impact of beef produced from specialist meat production based on suckler herds, as opposed to that based on the calves of dairy cows. According to the study, beef produced in this way has a greater impact in terms of greenhouse gas (GHG) emissions, acidification and eutrophication potential, and on land use.

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.

A Belgian public survey on greener energy consumption has found that positive messages about environmental issues may be more effective than negative messages in encouraging behavioural change for large sections of the public. The researchers suggest this can help policy planners devise targeted communications strategies.

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.

New research identifies important influences on the energy and environmental performance of biofuels made from agricultural crops. Type of land use change, type of biofuel crop and the by-products from the conversion process all influence performance.

There are no technical or economic barriers to providing all of the world’s energy from renewable sources, according to a recent study. With a concerted effort, including reduced demand and international cooperation, the researchers suggest that the world could be entirely reliant on renewable energy for electric power, transportation and heating/cooling by 2050.

The threat of possible death from climate change may paradoxically reduce our motivation to protect the environment, according to a new psychology study conducted in Germany. However, this negative impact on the environment could be reduced if people’s environmental motivations stemmed from a desire to benefit humans rather than a desire to protect nature itself.

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.

New research has compared the hot summers of 2003 and 2010 in Europe. The results indicate that the extreme temperatures in 2010 affected an area that was about twice as large as the area affected in 2003. Climate change projections for Eastern and Western Europe suggest that such mega-heat waves will become more frequent in the upcoming decades.

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.

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.

The risk of contamination of ground and surface waters and leakage of methane emissions remain key concerns associated with shale gas projects, according to a recent assessment. This is particularly the case if monitoring and regulatory systems are not rigorously enforced. In addition, investment in shale gas could divert resources needed to develop a low-carbon economy, suggest the report’s authors.

A new survey from 2010 reveals that upfront costs of up to €14,000 and lengthy payback times can discourage even the most environmentally conscious citizens from installing domestic renewable technology, such as solar panels and wind generators. However, people signing up to a ‘climate pledging’ scheme were still at least 11 times more likely to install these technologies than the average person in the UK.

Concerns about the negative impacts of ‘sunshade’ geoengineering on global food security are not supported by a recent modelling study, the first to simulate yield changes in a geoengineered climate. However, to mitigate climate change, the researchers suggest actions to reduce CO2 emissions are safer than introducing geoengineering projects, partly because some regions may actually suffer reduced crop yield in a geoengineered climate.

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.

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.

Trees and other vegetation have an important influence on urban temperatures. To explore these effects, Japanese researchers have built and studied scale models of tree-lined streets. This approach could help designers and planners create urban environments that are cooler during summer months.

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.

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.