"The US Air Force, which grounded the remaining seven of its eight C-130 air tankers after a crash in South Dakota on Sunday, has cleared the fleet to fly again today."

The bizarre weather of early summer in the US – from heatwave, wildfires, drought to freak storms – is just a sampling of what is to come for 2012 and a window to the future under climate change, scientists have said.

Scientists are wary of linking specific weather events to climate change, and this year's punishing heat and deadly thunder storms have been confined to the Americas. Europe, Asia and Africa haven't experienced severe weather this year – though they have in past years.

"The discovery of persistent, bioaccumulative, and toxic flame-retardant chemicals everywhere from animals north of the Arctic Circle to the breast milk of California women has been a cause for considerable concern. Alternative flame retardants were introduced to replace these chemicals, but investigators had not even produced the first empirical data on the substitutes’ metabolic fate and toxicity before emerging evidence indicated they, like their predecessors, were accumulating rapidly in the environment. As the postmarket research continues, one wonders: Who, exactly, decides on the replacements for toxic chemicals, and on the basis of what criteria? And why does finding truly safer alternatives seem so difficult?"

"A U.S. Navy oiler slipped away from a fuel depot on the Puget Sound in Washington state one recent day, headed toward the central Pacific and into the storm over the Pentagon's controversial green fuels initiative."

"Natural gas is causing angst and excitement in local communities across the country, but the rise of fracking will have an impact on an issue that affects everyone on the planet: climate change. Gas Planet, a special hour of radio, explores whether unconventional natural gas can help or hinder efforts to solve climate change."

"The federal Pipeline and Hazardous Materials Safety Administration said Monday that it would seek to impose a $3.7 million fine -- a record civil penalty -- on the pipeline operator Enbridge over an oil spill in the Kalamazoo River in Michigan two years ago."

"With widespread power outages still plaguing a multistate swath from Indiana to Virginia after the severe “derecho” event on Friday night, the late June heat wave continues to make headlines. Numerous all-time high temperature records were set on Saturday, with additional records expected to be set during the first few days of July.

"After several years of relatively benign fire seasons, the West is headed into a hot, dry summer of potentially ferocious blazes like the ones that have scorched Colorado in recent weeks."

"MARSHALL, Mich. -- An acrid stench had already enveloped John LaForge's five-bedroom house when he opened the door just after 6 a.m. on July 26, 2010. By the time the building contractor hurried the few feet to the refuge of his Dodge Ram pickup, his throat was stinging and his head was throbbing."

"Now that he survived his recall election, Wisconsin Gov. Scott Walker is lending his support to an upcoming fundraiser for the Heartland Institute, a climate-denying think-tank."