The rules, which come two decades after Congress ordered the agency to regulate toxic air pollution, would give power plants nationwide just three more years to slash mercury and other harmful emissions. But some big power plants are angling for more time.
Canada is withdrawing from the 1997 Kyoto Protocol agreement on climate change, with Environment Minister Peter Kent arguing that the framework doesn't represent the way forward for Canada or the world.
In Asia's Space Race: National Motivations, Regional Rivalries, and International Risks, Naval Postgraduate School professor James Clay Moltz discusses the potential militarization of fast-growing space programs in China, India, and Japan--and why US military officials are keeping watch.
For the first time, a government study has tied contamination in drinking water to an advanced drilling technique commonly known as "fracking." EPA scientists found high levels of chemicals used in hydraulic fracturing in the ground water of a small Wyoming town.
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