"Consider this: The average person’s body contains about 100 trillion cells, but only maybe one in 10 is human. ... The human cells that form our skin, eyes, ears, brain and every other part of our bodies are far outnumbered by those from microbes, primarily bacteria but also viruses, fungi and a panoply of other microorganisms. ... A growing body of evidence indicates that the microbial ecosystems that have long populated our guts, mouths, noses and every other nook and cranny play crucial roles in keeping us healthy."

"MONUMENT, Colo. -- The 50,000 drivers who cruise daily along Interstate 25 between Denver and Colorado Springs drive through ranch and farm land marked by dramatic buttes and the presence of wild animals, a vista that might have been very different but for a little-known federal program. "The Land and Water Conservation Fund, which Congress created in 1965, helped pay for this open space, along with large swaths of land in other areas across the country. But there is a fight looming in Washington as Congress plans to drastically cut the program’s budget, and President Obama, who had accepted cuts in the past, appears ready to oppose them."

"WASHINGTON — A senior Energy Department official pushed hard for the government’s $535 million loan to the now-bankrupt California solar energy company Solyndra even after he had disclosed that his wife’s law firm represented the company and he had promised to recuse himself from matters related to the loan application, according to e-mails provided to Congressional investigators by the administration.

"Mesothelioma, an exceedingly rare and lethal form of cancer, was once thought to be caused only by inhaling asbestos fibers. Then in the late 1970s, when astonishing rates of the disease were reported among villagers in central Turkey, it turned out that a different fibrous mineral was the culprit. Erionite was abundant in native soil and stone, and so easy to work with that villagers had used it to build homes."

"FREDERICK -- Randy White had just buried a daughter, dead at 30 with a brain tumor. Now his other daughter had been diagnosed with growths in her abdomen. When doctors told White in 2009 that their conditions were likely caused by something in their environment, the Frederick native thought of Fort Detrick. His children had grown up near the Army base."

"PANAMA CITY — With just weeks to go before UN talks on climate change open in South Africa, negotiators have shifted their goal from striking a historic deal to ensuring that the global system survives."

"WASHINGTON — With the formal debate over on Friday, a decision on an oil pipeline that will cross America's heartland and open up a greater market for Canada's oil sands now rests with Secretary of State Hillary Clinton."

"Why did the FBI detain and question a 62-year-old British environmentalist upon his arrival at New York City's John F. Kennedy Airport? The bureau won't say, and the activist, who was subsequently shipped back to London, never got a clear explanation." The answer, it seems, involves superglue.

"HOUSTON -- The U.S. Environmental Protection Agency on Thursday proposed easing new pollution restrictions that angered several states and infuriated GOP presidential contender Texas Gov. Rick Perry."

Green climate activists have declared their solidarity with the "Occupy Wall Street" movement.