"Fewer bees are available to pollinate California's growing almond crop. Beekeepers in the US have fewer bees this year because of drought and ongoing colony collapse disorder."

"BOSTON -- Exposure to lead—so toxic—is a problem of the past, right? Wrong. Since the U.S. took lead out of gasoline in 1976 and banned lead paint in 1978, most health scientists, regulators and the public have considered the problem largely solved. But ongoing testing shows that even though the average concentration of lead in the American bloodstream has dropped by a factor of 10 since the late 1970s, the levels are still two orders of magnitude higher than natural human levels, which have been determined by studying skeletal remains of native Americans dating to before the industrial revolution."

"U.S. farmers will plant crops this spring under the shadow of a persistent drought that grips prime farmland from the mississippi river to the rocky mountains, with grain supplies already tight from drought losses in 2012."

"Event billed as largest climate protest in US history intended as show of force as Obama nears decision on controversial project."

Are people exposed to doses of bisphenol A in their canned foods and other consumer products that can harm them? Or are the amounts too low to cause any harm? This is the crux of a vehement debate that is being waged as federal officials are trying to decide whether the chemical, known as BPA, should be regulated."

"Anonymous billionaires donated $120m to more than 100 anti-climate groups working to discredit climate change science."

"A U.S. District Court in Denver handed down a precedent-setting decision on Wednesday, ruling that the Bureau of Land Management must reveal the names of companies or individuals nominating public land for oil and gas drilling."

"Tesla Motors and The New York Times are at odds over one reporter's account of an ill-fated winter test drive of the Model S electric car. Many blame winter, but Tesla Motors blames gross inaccuracies in the Times report."

"Transocean Deepwater Inc. was found guilty by a federal judge Thursday of violating the federal Clean Water Act, based on the company's role in causing the uncontrolled release of 4.9 million barrels of oil into the Gulf of Mexico from BP's Macondo well after Transocean's Deepwater Horizon drilling rig exploded and sank in April 2010."

"The U.S. government is at high risk of financial exposure from climate change, the Government Accountability Office said on Thursday, two days after President Barack Obama vowed to tackle the issue with or without Congress' help."