"They say the ballot initiative to suspend the state's climate change law would hurt low-income communities already suffering the most from pollution."

"The company that runs the trans-Alaska pipeline remains under federal investigation and is in the middle of major changes after an internal probe this summer raised serious concerns about how it handled a major pipeline leak and emergency shutdown in May."

"An Albemarle County [Va.] Circuit Court judge has set aside  a subpoena issued by Virginia Attorney General Ken Cuccinelli to the University of Virginia seeking documents related to the work of climate scientist and former university professor Michael Mann."

EPA and the Transportation Department are considering an overhaul of the mileage stickers you see on the windows of cars in your local dealership.

"Pinpointing the amount of oil lingering in the Gulf of Mexico continues to be a source of frustration for journalists and scientists alike, with multiple, contradictory — if not necessarily 'dueling' —research reports having been published on the subject over the last few weeks."

The algae mats floating in a stretch of California's Bear River look pretty disgusting. The "didymo" -- short for its scientific name, Didymosphenia geminata -- looks something like shredded toilet paper. It also resembles another of its nicknames: "rock snot." Its behavior has changed in recent years, and it is spreading. It appears in trout streams and threatens trout. New Zealand has banned felt-soled wading boots (often used by fly fishers), which can spread it.

"Despite vigorous opposition from industry, it appears [Wyoming] state regulators and the general public will have broad access to documents detailing chemicals used in oil and gas drilling, hydraulic fracturing and other drilling operations."

Bedbugs, after almost vanishing from the U.S. for decades, have come back bigtime as The Bug That Ate New York. EPA and CDC have offered some advice on getting rid of them. But scientists know very little about them.

As Vietnam veterans age, there has been an explosion of claims for disabilities related to Agent Orange. It could cost the taxpayers $42 billion over the next 10 years, and it raises questions about the government's failure to address Agent Orange risks before using it.

"With prayers and the solemn tolling of bells, but also with second-line parades and the drumming of Mardi Gras Indians, New Orleanians throughout the region on Sunday took stock of their rebuilt lives in the five years since the worst event in the region's history, and promised each other to keep the recovery going."