"That cat poop can pose a health risk to humans no longer surprises us. Some cats carry a parasite called Toxoplasma gondii. Infected cats shed embryonic T. gondii, called oocysts, in their feces."

"NORFOLK, Va. — Even some supporters do not know what to make of it. PETA, considered by many to be the highest-profile animal rights group in the country, kills an average of about 2,000 dogs and cats each year at its animal shelter here."

"Archaeologists digging in the foothills of Iran's Zagros Mountains have discovered the remains of a Stone Age farming community. It turns out that people living there were growing plants like barley, peas and lentils as early as 12,000 years ago."

Mining of a newly discovered rare earth element near the remote Alaskan town of Hydaburg jeopardizes the fishery which is its economic mainstay.

"RICHMOND, Va. — Washington, D.C., and states within the Chesapeake Bay watershed are making progress to reduce pollution flowing into the hobbled estuary but none is on track to meet cleanup commitments set this year, an analysis by environmental groups concludes."

"The House this week is scheduled to take up a bill to fund the Department of Energy, the Army Corps of Engineers and related agencies that proposes steep spending cuts to clean energy and research programs."

"The Obama administration is looking forward to a host of new environmental regulations that go far beyond the president's plans to issue new standards for greenhouse gas emissions from new and existing power plants."

"Tropical storm warnings were issued for Puerto Rico and other parts of the Caribbean on Monday as Tropical Storm Chantal chugged along a course that could take it near Florida's Atlantic coast by the weekend."

"It went up orange, a gas-propelled geyser that rose 100 feet over the North Dakota prairie. But it was oil, so it came down brown. So much oil that when they got the well under control two days later, crude dripped off the roof of a house a half-mile away."

"ATLANTA -- A political group founded by billionaire brothers Charles and David Koch wants Georgia's utility regulators to reject a plan requiring Southern Co. to buy more solar energy, but an Associated Press review ahead of a vote on the issue finds that it has used misleading figures to build its case."