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"The Obama administration recently pulled the plug on lowering EPA limits. It seems clear, though, that the lower the level, the fewer effects on health."

"Prime Minister Vladimir Putin on Thursday predicted Arctic shipping routes along Russia's northern coast would soon rival the Suez Canal as a quicker trade link from Europe to Asia."

"A defunct NASA satellite the size of a bus that is expected to fall to Earth on Friday will likely miss North America, NASA said.

The agency's 13,000-pound (5,900 kg) Upper Atmosphere Research Satellite, or UARS, has been slowly tumbling from orbit since its mission ended in 2005. It is expected to re-enter Earth's atmosphere and break apart on Friday."

The UARS satellite played a historic role in investigating the atmospheric chemistry behind the stratospheric ozone hole, and has been replaced by more advanced instruments gathering additional data.

"The glassy stares of the dead, the garbage piling up in the streets, the frightened, angry mobs smashing their way into drugstores and attacking food lines. The images in the thriller Contagion may be delivered with Hollywood flair, but they also have a ring of truth to those on the medical front lines.

"The glassy stares of the dead, the garbage piling up in the streets, the frightened, angry mobs smashing their way into drugstores and attacking food lines. The images in the thriller Contagion may be delivered with Hollywood flair, but they also have a ring of truth to those on the medical front lines.

"U.S. EPA plans to enforce smog rules that were put in place under George W. Bush, now that President Obama has asked the agency to wait until 2013 to move on still-stricter air quality standards for ozone, Administrator Lisa Jackson told lawmakers on Capitol Hill [Thursday] morning.

Jackson had spent the past two years reconsidering the limit of 75 parts per billion, which was finalized in 2008, because it was higher than the range of 60 to 70 ppb recommended by the agency's science advisers.

"Free for dinner in Washington? Nineteen groups of architecture students will be serving meals next week at houses they have built in West Potomac Park, adjacent to the National Mall, as part of the Department of Energy’s biennial Solar Decathlon, a kind of “America’s Got Talent” for green architecture."

"Bed bugs might make you itch, but the chemicals used to combat the pests are making some people ill.

As more people in the United States are feeling the bed bug's bite, there has been a spike in illnesses from pesticides used to kill the insects, the Centers for Disease Control and Prevention CDC.L reported on Thursday.

From 2003 to 2010, 111 people were sickened and one died from bed bug insecticide, the government agency reported in a study that is the first of its kind in the country.

"In lobbying for a presidential permit to construct a massive oil pipeline stretching from Canada to the Gulf Coast, TransCanada’s Paul Elliott has tried nearly every angle.

"President Obama’s visit to the Solyndra solar panel factory in California last year was choreographed down to the last detail — the 20-by-30-foot American flags, the corporate banners hung just so, the special lighting, even coffee and doughnuts for the Secret Service detail."