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Cool pavements to reduce urban heat islands: the state of the technology

Cool pavements, which can be used to reduce the Urban Heat Island (UHI) effect, where towns and cities are warmer than surrounding rural areas, have been reviewed in new research. The review found that reflective pavements can reduce temperatures by up to 20°C and are more durable than evaporative pavements, which are less effective at temperature reduction but may have other benefits, such as reducing runoff.




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Wave and tidal energy plants are ‘green’ technologies

Environmental impacts for a wave energy device, tidal stream and tidal range plants are potentially eight, 20 and 115 times lower respectively than for coal-generated power, averaged over five impact categories. An assessment of the amount of metal used by these technologies, however, shows an impact respectively 11 and 17 times higher than for coal- and gas-based power generators. These are the findings of a recent study, which compared the life-cycle environmental impacts of various wave and tidal energy devices with other forms of energy generation. The researchers conclude that wave and tidal energy plants qualify as ‘green’ technologies according to their definition, but that their impacts on marine ecosystems need further research.




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Wave farms could help prevent coastal erosion under future sea-level rise

As well as providing renewable energy, wave farms can help protect coasts against erosion by reducing the force of waves. However, it remains unknown whether they can provide this complementary service under future climate change when sea levels will be higher. A new study, based upon computer simulations, concludes that a wave farm off the south coast of Spain could indeed protect the coastline under higher sea levels, and cause the local beach to grow in size after storms.




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Can I determine where screen shots are saved?




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Mobile Video Index to trend in 2018: Openwave mobility predictions

Openwave Mobility released predictions for 2018 based on two major pieces of analysis- the mobile video index (MVI) based on live data gathered from over 30 global mobile operators and the NFV Playbook, based on NFV trials and deployments with insight from leading industry analysts.




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Sustainable transport survey identifies five types of travellers

A new study of attitudes towards transport and mobility has identified five groups of travellers. The groups differ significantly in their choice of transport, distance travelled and the impact their transport choices have on the environment in terms of greenhouse gas (GHG) emissions.




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Do companies influence travel behaviour of employees?

Information on travel behaviour can provide insight into the most effective and sustainable ways to manage traffic congestion and its environmental impacts. A new German study focuses on service-related traffic and shows that employees of different types of companies have distinctly different travel behaviour.




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What is the best way to travel if you care about global warming?

Travelling by coach or train has a lower impact on the climate than travelling by air or car, but using a small diesel car to carry several passengers can have similarly low impacts per person, new research suggests. Air travel is the worst form of transport, in terms of global warming impact, the researchers found, but the average percentage occupancy of a mode of transport significantly affects the impact per passenger.




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Individual and social costs of car travel more than six times those of cycling

TEvery kilometre travelled by car incurs costs to the individual and society that are more than six times those of travelling by bicycle, a new study suggests. The researchers presented a cost-benefit analysis developed for Copenhagen, finding that cars resulted in costs of 0.50 €/km in comparison to 0.08 €/km for bikes.




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Greenhouse gas emissions associated with long-distance travel

Long-distance travelling accounts for a significant number of miles travelled per person, but estimates of its greenhouse gas emissions are lacking. Using data from Belgium and the Netherlands, this study estimates that long-distance journeys account for 40–50% of total mileage and 50% of greenhouse gas emissions of all people transport in Western Europe.




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Planting forests at high latitudes can have a cooling effect

A new study based on high-resolution satellite observations of forests suggests the 'albedo', or reflectivity, of a forest needs to be carefully considered in afforestation schemes designed to mitigate climate change, i.e. carbon balance alone is not a good indicator of mitigation value. The authors argue that the Kyoto Protocol carbon accounting rules grossly overestimate the cooling caused by afforestation, because they do not consider albedo effects.




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Pricing carbon insufficient to save tropical forests from deforestation

Putting a price on carbon emissions from deforestation is unlikely to prevent tropical forests being cleared for palm oil production, according to a recent study. Additional measures should be included in climate policies to protect forests from increasing global demands, such as biofuels.




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Strict environmental law does not necessarily create pollution havens

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.




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Congestion schemes have positive spillover effect on green behaviour

Congestion schemes can encourage people to adopt environmentally friendly behaviours more generally, a new study suggests. Researchers who surveyed car owners after the introduction of a congestion scheme in Stockholm found that after its introduction nearly half of people surveyed adopted greener behaviours such as conserving energy and water.




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What effect will the Water Framework Directive have on local planners?

For successful implementation of the Water Framework Directive, local planners will need specific targets, guidance on interpretation, and adequate resources to monitor progress, according to a recent study from Sweden.




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Public views on Baltic eutrophication have important policy implications

Citizens in countries surrounding the Baltic Sea would be willing to contribute financially towards long-term management of eutrophication, according to a recent study. Furthermore, most would like to see the Baltic Sea managed as a single whole, rather than only improving their local coastal area.




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Decentralised supply of recycled water may save energy and reduce greenhouse gas emissions

Reusing waste water for non-drinking uses in decentralised plumbing networks may improve the efficiency of water supply in urban areas, a new study has found. Modelling this approach in San Francisco, researchers found that, depending on the local geography, a decentralised water supply could lead to energy savings and reductions in greenhouse gas emissions from water treatment of around 30%. Improvements in emerging water-treatment technologies are likely to lead to further savings, which could help increase the efficiency of urban water supply.




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Alien invasive species leave European mariculture areas aboard pieces of anthropogenic litter

Areas of mariculture — where marine organisms are cultivated for food — have been identified as important source areas for the dispersal of invasive alien species (IAS) via artificial floating litter. In order to identify IAS at high risk of dispersal via this method, researchers have analysed fouled anthropogenic litter sampled on beaches in two important European mariculture areas. Overall, the team detected eight aquaculture-related IAS attached to anthropogenic litter. All of these species are well adapted to rafting on artificial surfaces and have high potential to disperse in this way, suggesting that they are suitable candidates for closer monitoring and policy action in the future.




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Combining behavioural change and game-like incentive models encourages consumers to save water

Domestic water saving is important — not only to address water scarcity and drought, but also to save energy and tackle climate change. Water-management strategies are needed to prevent these shortages, and include incentives to change consumers’ behaviour concerning water use. This study examines the design of a behaviour-change system and a linked incentive model to stimulate a sustainable change in water-consumption behaviour.




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Wealthier European regions have more alien species

Wealthier, more populated regions of Europe are more likely to have greater numbers of invasive alien species, according to researchers. A new study has indicated that human factors are more influential in encouraging alien invasions than the climate or whether the species are introduced to an island or a mainland region.




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Temperate ponds will have more species as the climate warms

Ponds are considered to be ideal early warning systems that can be used to assess the effects of climate change at the local level. A recent study suggests warmer temperatures are likely to significantly increase the number of species found in ponds in temperate areas, especially at high altitudes. However, despite an overall increase, some species would also become extinct.




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Current economic activity leaves an alien species 'invasion debt'

Past economic activity is more likely to explain the current pattern of biological invasions across Europe than recent human activities, according to a new study. It can take several decades before a newly introduced species becomes established and spreads, which may mean that recent invasions caused by current economic activities could create an 'invasion debt' for future generations.




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Bird monitoring methods have potential to be improved

The first ever European-wide study of bird monitoring practices reveals a wide range of monitoring protocols. The researchers provide recommendations for improving bird monitoring programmes, in particular, for those involving large numbers of volunteers.




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Risk-averse behaviour may improve farmland biodiversity

'Bet-hedging' behaviour among farmers, who diversify land use to avoid investing in a single land use that might fail, can boost farmland biodiversity, a new study suggests. However, because historical data show this is not the most frequent strategy used by farmers, balancing environmental and economic concerns in agriculture may still require public policy instruments, such as subsidies or taxes.




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Wind turbines have minor impact on small-bird populations

Only about two or three small birds are killed by wind turbines each year for every 225-300 houses supplied with renewable energy, new research suggests. The study collated data from 116 US and Canadian studies on 156 species of passerines (small birds). The study suggests some species are affected more than others, but that wind turbines generally have only a minor impact on these small-bird populations.




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Common European birds have declined more rapidly than rarer species

The number of birds in Europe has fallen by more than 420 million between 1980 and 2009, new research has found. The study, which examined 144 bird species across 25 countries, found that 90% of the lost numbers were accounted for by common species, such as house sparrows (Passer domesticus). The decline was steepest in the first half of the study (1980–1994), followed by a period of greater stability in the second (1995-2009). More needs to be done to conserve common, as well as rare species, the researchers say.




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Insect-eating bats save global maize farmers €0.91 billion a year from crop damage

Insect-eating bats are estimated to be worth US$ 1 billion (€0.91 billion) a year to maize farmers around the world, a new study has revealed. Not only do bats reduce crop damage by eating adult corn earworm crop pests, they also suppress fungal infections in maize ears. Bats and their habitats need to be better protected for their ecological and economic contributions, say the study’s authors.




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Diverse fish communities have greater resistance to climate change

Marine fisheries play a key role in feeding human populations, but are faced with the twin threats of overexploitation and climate change. Using a comprehensive database of global reef-fish communities, a team of researchers has found that the greater the diversity of fish in an assemblage, the less vulnerable that assemblage is to climate change. The researchers suggest climate change mitigation efforts should include a focus on maintaining a wide range of species in at-risk communities.




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Invasive black locust tree can have sustainable future despite biodiversity impacts

The black locust tree can be economically valuable and offer certain environmental benefits, but its dominant and invasive nature in Europe can have an adverse impact on biodiversity. A recent study, which presents an overview of this species’ ecological and socio-economic impacts in Central Europe, recommends tolerating the tree in some areas and eradicating it in others, in order to balance its co-existence with people and nature.




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Low toxic heavy metal risk for the average Spanish consumer of seafood

A new study assessing the levels, and potential health risk, of toxic heavy metals in market-bought fish and shellfish in Spain has found that they are generally below European Commission regulatory limits, and that these products are therefore safe to eat for the average consumer in Spain. However, for high level consumers of specific fish species, toxic element levels could pose a risk to health.




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Radioactive iodine in Arctic sea ice may have European origin

Ninety-eight per cent of radioactive iodine in Arctic sea ice may come from Europe, new research suggests. The study concludes that atmospheric transport of Iodine-129 from European nuclear fuel reprocessing plants is the most likely source.




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Exposure to BPA derivatives: newer analogues may also have endocrine-disrupting effects

Bisphenol A (BPA) is a chemical that is widespread in the environment. Researchers reviewed and critically discussed the sources and routes of human exposure to chlorinated derivatives (ClxBPA) and alternatives to BPA (BPF, BPS), as well as their metabolism, toxicity and concentrations in human tissues. The researchers suggest BPA alternatives and derivatives may have similar effects, and provide directions for future research.




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Using microwaves to clean polluted soil could lead to energy savings

Researchers have experimented with microwave heating as a way of cleaning soils polluted with fuels, such as diesel and petrol. Soil type and moisture levels, as well as the strength of microwaves used, had a strong bearing on the overall effectiveness of the cleaning. The research shows that, at certain depths and in certain types of soil, microwaves can be a cost-effective way of cleaning polluted soils.




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Separate waste-water treatment of urine could have lower environmental impact than centralised, combined waste-water treatment

Municipal wastewater is a major source of pharmaceuticals in the aquatic environment. Results from a recent study suggest that collecting and treating urine separately from other forms of sewage could be a cost-effective way to reduce the harmful effects of pharmaceuticals on the environment, while also providing a source of nutrients for fertilising agricultural crops.




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Silver nanoparticles can have complex and toxic effects on wheat roots

A new study has examined the toxic effects of silver nanoparticles on plants. Using a range of spectroscopic and imaging techniques, the researchers demonstrate how silver nanoparticles can reduce the growth of wheat, as well as interfere with genes that help the plant deal with pathogens and stress.




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Unravelling the complex chemistry of the atmosphere

Although there have been significant advances in the understanding and monitoring of atmospheric processes in the last decade, a recent study suggests that uncertainties in their assessment continue to grow and more complex studies are required to understand the precise relationship between atmospheric chemicals, such as air pollutants, and climate change.




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Black carbon from wildfires is travelling across Europe

New research has recorded high levels of airborne aerosol black carbon (BC) in Lithuania during two periods in 2008 and 2009. Further investigation indicated this is from smoke produced by wildfires in Ukraine and southwest Russia, which then travels northwards.




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Leaked hydrogen fuel could have small negative effects on atmosphere

Using hydrogen as an energy carrier can help reduce air pollution and greenhouse gas (GHG) emissions associated with fossil fuels, according to recent research. However, if used on a large-scale, it is important that hydrogen does not leak significantly into the atmosphere as it might have some negative environmental effects, such as increasing the lifetime of methane, increasing climate effects and causing some depletion of the ozone layer.




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Parallel parking improves air quality on urban pavements

Pedestrians are exposed to different levels of pollution on the pavements depending on how parked cars at the roadside are arranged, according to the first in a series of new studies in this area. The researchers modelled different parking regimes and found that less pollution reached the pavement when cars were parked sideways on, rather than at an angle to the street. Their results may help urban planners design more pedestrian-friendly streets.




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Air quality in Europe: pollution levels have dropped, but health concerns remain

Some progress has been made towards improving air quality in Europe with levels of sulphur dioxide, carbon monoxide and benzene all falling substantially in recent years, a new report from the European Environment Agency (EEA) concludes. However, threats to human health and ecosystems remain, and urban citizens’ exposure to high levels of particulate matter (PM) and ozone are a particular concern.




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Black smoke pollution may have ‘medium-term’ delayed effects on mortality rates

Increased black smoke pollution was associated with increased mortality rates almost a month after exposure in a recent study. The researchers studied death rates in relation to pollution concentrations over a 22-year period in the city of Glasgow, UK, and found significantly higher mortality rates among residents at 13-18 and 19-24 days after increased exposure to black smoke.




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Individual non-methane VOCs have large impacts on human health

Emissions of non-methane volatile organic compounds (NMVOCs) can have damaging effects on human health. New research has now revealed that only three substances out of a large number of NMVOCs are responsible for almost all damaging effects on human health. Air pollution policies should be designed to target these substances specifically, rather than overall NMVOC emissions, the researchers recommend.




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Regional air pollution improvements have global health benefits

Reductions in emissions of fine particle air pollution can prevent premature deaths, not just locally, but also in countries thousands of kilometres away, new research illustrates. The transcontinental study examines the effects of reducing air pollution emitted from Europe, North America, South and East Asia by 20% and shows that, for example, reductions in the EU would mean 3700 fewer premature deaths in the other three regions every year.




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East Asian air pollution to have bigger global impact under climate change

Greater amounts of air pollutants emitted in East Asia will move around the globe under climate change, a recent study predicts. Changes to wind speeds and air pressure will mean that movement of pollution from this region is enhanced under a changing climate. These results highlight the need for globally coordinated efforts to tackle air pollution and climate change.




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Waters acidified by air pollution have recovered as predicted

Back in 1999, a group of scientists predicted how changing air pollution levels would affect the acidity of lakes and rivers in Europe in 2010 using a computer model. A follow up study has now gathered actual measurements of these waters to see if the predictions came true. The observations show that most of the rivers and lakes did recover from acidification, as forecast by the model, and demonstrate the model’s value in predicting future water chemistry, the authors say.




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Reducing global particulate matter pollution could save millions of lives

Globally, more than 3.2 million premature deaths per year are attributed to exposure to ambient fine particulate matter (PM2.5). A new study estimates that 2.1 million premature deaths could be avoided if countries achieved the WHO guideline for PM2.5. Even meeting their closest WHO interim concentration targets could avoid 750 000 (23%) deaths attributed to PM2.5 per year.




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Travelling slower reduces fuel consumption and nitrogen oxides emissions of ships

Ships that reduce their speed use less fuel, which lowers costs for shipping companies. The slow steaming practice also cuts nitrogen oxides (NOx) emissions. A study found that ships travelling on four European routes lowered their NOx emissions by 12% during the economic crisis of 2008/2009. Shipping continues to be a major way of transporting goods, however, and as the global economy recovers the researchers and civil society call for additional measures to reduce NOx emissions from shipping and improve air quality in Europe.




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Aerosol pollutants can have long-range effects on ocean oxygen levels

Oxygen decline is occurring in many of the world’s oceans and has important consequences for marine ecosystems, but the causes are not fully understood. Aerosol pollutants may be partly responsible, according to a new study which modelled the effects of atmospheric pollution over the Pacific Ocean. The findings suggest that air pollution can exacerbate climate impacts on the ocean, even when the source is far away.




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Three-quarters of all human releases of mercury have occurred since 1850

A new study has, for the first time, estimated total anthropogenic releases of mercury over the last 4 000 years, up to 2010. Overall, the study estimates that a total of 1 540 000 tonnes of mercury have been released; three-quarters of this since 1850, and 78 times more than was released through natural causes over this period. Therefore, human activity has been responsible for a significant level of contamination, and this inventory can be used to inform and assess mitigation measures. The publication coincides with the ratification of the Minamata Convention on Mercury, and the new EU Mercury Regulation1, which prohibits the export, import and manufacturing of mercury-added products, among other measures.




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No need to travel as Southbank Sinfonia recruits artists around the world using a Cisco TelePresence solution from BT

Every year some of the world’s best young musicians would jet into London to audition for a bursary with the Southbank Sinfonia. Simon Over wanted to cut down on those thousands of air miles and hours in transit. He also didn’t want to miss out on youngsters who couldn’t afford the fare.