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By Valerie Volcovici Washington - The Environmental Protection Agency overstepped its authority by moving to regulate greenhouse gas emissions from power plants and industrial facilities, industry groups and representatives argued in federal court on Wednesday. In the second day of two-day arguments on a case seeking to overturn the agency's proposed greenhouse gas regulations, challengers took on two of the EPA's proposed rules to regulate stationary sources under the Clean Air Act. Wednesday's oral arguments centered on the so-called "tailoring rule," which the EPA issued in 2009 to shield small stationary polluters, such as schools, from having to obtain permits for greenhouse gas emissions

Soiled plates in the clean buffet stack, missing safety signage and more than 30 fruit flies, dead and alive, were recently discovered on Monarch of the Seas by inspectors from the Centers for Disease Control and Prevention.

As Congress gears up for another budget fight, environmental protections--from endangered species to clean water to pollution rules for power plants--are all on the chopping block. Once the debt ceiling debate is settled, Congress is going to have to re-focus on the budget that almost shut down the government a few months ago

UNITED NATIONS -- They are the carbon offsetting projects most hated by environmentalists, but there may now be an opportunity to put an end to them. Currently, there are five coal-fired power plants registered as emission reduction projects under the Clean Development Mechanism (CDM), an international offsetting program run by an arm of the United Nations. Pressure from developing nation governments led to their inclusion in the program, as supporters claim the newer supercritical coal plants avoid carbon dioxide emissions by preventing dirtier plants from being built instead.

President Obama emphasized advances in efficient lighting yesterday in a campaign narrative that connects his clean energy goals with American job growth. He visited election-important North Carolina to underscore the improvements to light-emitting diode (LED) technology since his last presidential campaign in 2008 -- when he appeared at Cree Inc. for the first time, a few months before capturing the state's Electoral College votes

Add renewable energy to the list of industries in which China is now coming out on top of the U.S. While China is still home to thousands of pollution-spewing factories, it's also now churning out wind turbines and solar panels at a world-record pace