Exposure to Aircraft noise a continuing problem even with quieter engines
July 15, 2014 07:24 AM - EurActiv
Millions of urban Europeans are exposed to aviation noise that contributes to stress, high blood pressure and even weight gain, say health specialists who want stronger measures to make flying quieter. While new-generation jet engines are on average 75% quieter than than their 20th century predecessors, the advance in technology has been offset by a steady rise in flights and a demand for bigger passenger planes.
Is London measuring its urban heat island accurately?
July 14, 2014 09:15 AM - Alex Peel, Planet Earth Online
London's urban heat island effect, which keeps night-time temperatures in the capital warmer than in surrounding rural areas, may have been underestimated by up to 45 per cent. The heat can pose serious health risks, particularly for the elderly and very young.
Light rail systems DO improve air pollution in cities
July 13, 2014 08:59 AM - Roger Greenway, ENN
Have you ever wondered if the cute light rail systems some large cities are installing actually get people out of their cars and have a positive environmental impact? For the first time, researchers have shown that installing light rail on an existing traffic corridor not only gets people out of their cars, but reduces congestion and air pollution. In the study, planners at the University of Utah measured impacts of a new light rail line in Salt Lake City (University Line) on an existing major thoroughfare (400/500 South). Their analysis showed that traffic near the University has fallen to levels not seen since the 1980s, even as the number of students, faculty and staff at the U has increased, and the commercial district along the corridor has expanded.
Oceanic litter is widespread
July 8, 2014 08:18 AM - Harriet Jarlett, Planet Earth Online
Litter is now found in even the most remote areas of the oceans, say scientists trying to understand how much rubbish is lying at the bottom of Europe's seas. The new study, published in Plos One, shows for the first time that there seems to be no area of the ocean left untouched by human litter. Using 588 video clips collected by unmanned submarine vehicles for geological mapping and marine biology studies, the team found that plastics waste like shopping bags is the most prevalent.
Conserving water and climate change
July 6, 2014 06:47 AM - Springer Science+Business Media, via ScienceDaily
There's more to trying to slow down climate change than just cutting greenhouse gas emissions. Technology, policies or plans that aim to do so should also take environmental factors such as water usage into account. A more integrated approach might make some options considerably more attractive than others, especially when implemented in arid countries such as Australia, advise Philip Wallis of Monash University in Australia and colleagues, in an article in Springer's journal Climatic Change. The researchers considered the example of Australia to show how water usage influences the appeal of certain preferred mitigation options. They analyzed 74 options that were ranked in the influential "Low Carbon Growth Plan for Australia" in 2010, and together could help Australia cut its 2000 emission levels by 25 percent by 2020.
Sea Grass in coastal New England waters under attack by Nitrogen
July 5, 2014 08:29 AM - ecoRI News staff
A federally funded scientific study on regional seagrass health recently released by The Nature Conservancy points to nitrogen pollution — from sewage and fertilizers — and warmer water temperatures as the killer threats to seagrasses throughout the coastal waters of southern New England. Seagrass is vital habitat for fish and shellfish and is important for water quality.
EPA Proposes New Standards for Landfills, Hopes to Reduce Methane Emissions
July 2, 2014 08:49 AM - US EPA Newsroom
As part of the President's Climate Action Plan — Strategy to Reduce Methane Emissions, the U.S. Environmental Protection Agency (EPA) is proposing updates to its air standards for new municipal solid waste (MSW) landfills. These updates would require certain landfills to capture additional landfill gas, which would reduce emissions of methane, a potent greenhouse gas, and help further reduce pollution that harms public health.
Oklahoma and Earthquakes - Is Fracking to Blame?
July 1, 2014 08:42 AM - Kevin Mathews, Care2
Which state is the current earthquake capital of the United States? If you guessed California, your data is sadly out of date. Believe it or not, Oklahoma, the new center of quivering land, has twice as many earthquakes as California does at this point. We're not just talking minor shaking, either. Oklahoma averages one earthquake that measures at least 3.0 on the Richter scale every single day.
World’s Protected Areas Not Protecting Biodiversity
June 30, 2014 02:53 PM - Wildlife Conservation Society
Scientists from James Cook University, the Wildlife Conservation Society, the University of Queensland, Stanford University, BirdLife International, the International Union for Nature Conservation, and other organizations have warned that the world's protected areas are not safeguarding most of the world's imperilled biodiversity, and clear changes need to be made on how nations undertake future land protection if wildlife is going to be saved. These findings come at a time when countries are working toward what could become the biggest expansion of protected areas in history. The authors of the new study found that 85 percent of world's 4,118 threatened mammals, birds, and amphibian species are not adequately protected in existing national parks, and are therefore vulnerable to extinction in the near term. The new study appears in the esteemed international journal PLOS Biology.
Why can't we recover precious metals from landfills?
June 30, 2014 08:17 AM - CleanTechies, Clean Techies
Mining for precious metals like gold, silver, and copper is extremely costly. Not only does it require a huge amount of energy and have a devastating impact on the environment, it also puts human life at risk. Still, these metals are what enable our precious smartphones and tablets to work so efficiently, so we have to get them from somewhere. But what if that somewhere was old gadgets we no longer want instead of deep within the Earth?