National (U.S.)

"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."

"Democrats in Congress wasted no time in taking up President Barack Obama’s challenge Tuesday night that lawmakers take a 'market-based' approach to addressing climate change, even if their effort has little hope of success."

"Donna Busche, a nuclear engineer and health physicist, files a suit alleging that executives tried to dissuade her from raising warnings about serious problems with the waste site's design."

"In 2007, when Deborah Rice was appointed chair of an Environmental Protection Agency panel assessing the safety levels of flame retardants, she arrived as a respected Maine toxicologist with no ties to industry."