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Iron dissolved by air pollution may increase ocean potential to trap carbon
Iron particles generated by cities and industry are being dissolved by man-made air pollution and washed into the sea – potentially increasing the amount of greenhouse gases that the world’s oceans can absorb, a new study suggests.Scientists have long believed that acids formed from human-generated pollution and natural emissions dissolve iron in airborne particles -…
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What Global Climate Change May Mean for Leaf Litter in Streams and Rivers
Rate of leaf litter decay — and release of carbon to the atmosphere — may not accelerate as much as previously predicted as temperatures riseCarbon emissions to the atmosphere from streams and rivers are expected to increase as warmer water temperatures stimulate faster rates of organic matter breakdown.
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Study: Volkswagen's excess emissions will lead to 1,200 premature deaths in Europe
In September 2015, the German Volkswagen Group, the world’s largest car producer, admitted to having installed “defeat devices” in 11 million diesel cars sold worldwide between 2008 and 2015. The devices were designed to detect and adapt to laboratory tests, making the cars appear to comply with environmental standards when, in fact, they emitted pollutants…
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Brake Dust May Cause More Problems Than Blackened Wheel Covers
Though tailpipe emissions could fall in the years ahead as more zero-emission vehicles hit the streets, one major source of highway air pollution shows no signs of abating: brake and tire dust.Metals from brakes and other automotive systems are emitted into the air as fine particles, lingering over busy roadways. Now, researchers at Georgia Institute…
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Late winter 'heatwave' hits the U.S. in February
It has been warm this winter for much of the country. But even with that said, temperatures recorded during a four-day period in late February 2017 across the central and eastern United States were extraordinary for the end of meteorological winter—December through February.
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Human, Cattle Viruses Detected in Some Great Lakes Tributaries
Human and bovine, or cattle, viruses were detected in a small percentage of some Great Lakes Basin streams, with human viruses more prevalent in urban streams and bovine viruses more common in streams in agricultural areas, according to a recent U.S. Geological Survey-led study.
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Taking Earth's Inner Temperature
The temperature of Earth’s interior affects everything from the movement of tectonic plates to the formation of the planet.A new study led by Woods Hole Oceanographic Institution (WHOI) suggests the mantle—the mostly solid, rocky part of Earth’s interior that lies between its super-heated core and its outer crustal layer – may be hotter than previously…
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NASA Study Improves Forecasts of Summer Arctic Sea Ice
The Arctic has been losing sea ice over the past several decades as Earth warms. However, each year, as the sea ice starts to melt in the spring following its maximum wintertime extent, scientists still struggle to estimate exactly how much ice they expect will disappear through the melt season. Now, a new NASA forecasting…
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Transforming the carbon economy: U.S. Energy Dept. task force recommends research
Most strategies to combat climate change concentrate on reducing greenhouse gas emissions by substituting non-carbon energy sources for fossil fuels, but a task force commissioned in June 2016 by former U.S. Secretary of Energy Ernest Moniz proposed a framework in December 2016 for evaluating research and development on two additional strategies: recycling carbon dioxide and removing…
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Climate research needs greater focus on human populations
Climate change research needs a greater focus on changing population structures when assessing future human vulnerability, argue IIASA researchers in a new perspective article in the journal Nature Climate Change.Climate research has provided a range of scenarios of showing how climate change will affect global temperatures, water resources, agriculture, and many other areas. Yet it remains…