"The Environmental Protection Agency said Monday that it would probably increase the amount of ethanol that gasoline retailers could blend into ordinary fuel, to 15 percent, if tests established that the blend would not damage cars."

"The U.S. Environmental Protection Agency is on schedule to release federal guidelines for the disposal of coal ash some time this month, but a potential loophole in the new rules has some worried they will leave Iowans unprotected."

"A study released Wednesday which found that nine of 10 babies tested were born with bisphenol A in their systems has renewed calls for the chemical to be banned."

"Environmental officials in Maine and a dozen other states issued a statement Wednesday saying federal laws to protect the public from toxic chemicals are too weak and states instead are leading the way."

"New horizons in biomonitoring are identifying environmental exposures that may play a role in health problems, including cancer, neurological disorders and diabetes. At their fingertips, researchers already have precise measurements of nearly 150 chemicals in several thousand American adults and children."

"Changes in tap water chemistry can liberate lead from household plumbing pipes and the mineral scale that coats them, resulting in water that is contaminated only after it leaves the treatment plant."

"Two environmental groups petitioned U.S. EPA today to set national limits for greenhouse gases using the Clean Air Act."

Cleanup of polluting runoff from abandoned mines in Colorado and elsewhere is stalled by a legal paradox.