"The government issued warnings on Friday about two materials used daily by millions of Americans, saying that one [formaldehyde] causes cancer and the other [styrene] might."

Firefighters working dangerous night shifts were barely beginning to get a handle on some 6 wildfires in Arizona that were spreading to New Mexico, the largest of which, the Wallow fire, was barely more than 10 percent contained. Regional smoke continued to be a serious health threat. Authorities looked for a human cause to blame the fire on, even though the tinder-dry conditions had been causing the Wallow fire to spread at nearly 1,000 acres per hour. Evacuations began in New Mexico even as some Arizona evacuees were being allowed to return home.

"Judging from an annual survey by researchers at Yale and George Mason universities, the American public is roughly as fractured in its attitudes toward climate change today as it was last year."

"The snowpack in the Rocky Mountains has been gradually thinning over much of the past century, and a new study attributes much of that to global warming."

"A report says the chairman of the Nuclear Regulatory Commission was “not forthcoming” with other commissioners in his decision to have the agency’s staff wind down the review of an application for a nuclear waste repository at Yucca Mountain in Nevada."

"A panel of three federal administrative law judges has announced it is delaying Diablo Canyon nuclear power plant’s license renewal until at least December 2015." The renewal will await further seismic studies.