"The owner of the West Virginia coal mine where an explosion killed 29 men last year kept two sets of books on safety conditions -- an accurate one for itself and a sanitized one for the government, federal regulators said Wednesday."

"Exposure to wildfire smoke -- particularly that from smoldering peat -- can dramatically increase the risk of cardiac and respiratory illness, according to new research led by the Environmental Protection Agency."

"The Canadian delegation at an international summit admitted Thursday it agrees with the work of a United Nations scientific panel that wants limits placed on the export of chrysotile asbestos, but Canada still won't back the move."

"Canada told the world Wednesday it opposes placing limits on the export of chrysotile asbestos -- a 'bombshell' expected to derail international efforts to list the mineral as hazardous."

"Researchers found 'significantly higher' rates of birth defects in areas with mountaintop removal mines than in non-mining regions in central Appalachia, according to a study released Tuesday."

"Exposure to chemicals early in life may alter how breast tissue develops and raise the risks of breast cancer and lactation problems later in life, scientists concluded in a report published Wednesday. The scientists are urging federal officials to add new tests for industrial chemicals and pesticides to identify ones that might disrupt breast development."

"Gastroschisis, a birth defect in which the intestines grow outside the body, is more common among babies conceived in the spring when the levels of the herbicide atrazine in water are highest, researchers from Indiana reported."

"China has been accused of trying to cover up the extent of lead poisoning among children, and of blocking effective testing and treatment."