Some 48 prominent activists were arrested at the White House Wednesday when they protested the proposed Keystone XL pipeline, which they say will worsen climate change. The Obama administration faces an upcoming decision on completing the pipeline.

"Two-thirds of Americans want President Barack Obama to act now on climate change, adding momentum to his state of the union promise to take up the challenge with or without Congress."

"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."

"A bid by [Canada's] federal government to impose sweeping confidentiality rules on an Arctic science project has run into serious resistance in the United States."

"It is the most humble of vessels for New York City foodstuffs, ubiquitous at Chinese takeout joints and halal street carts. In pre-Starbucks days, coffee came packaged in its puffy embrace. Mayor Michael R. Bloomberg, whose regulatory lance has slain fatty foods, supersize sodas, and smoking in parks, is now targeting plastic foam, the much-derided polymer that environmentalists have long tried to restrict."

"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."

"U.S. President Barack Obama on Tuesday gave Congress an ultimatum on climate change: craft a plan to slash greenhouse gas emissions and adapt to the dangers of a warming world, or the White House will go it alone."

EPA scientists in 2010 were ready to declare that even small amounts of hexavalent chromium -- found in the drinking water of some 70 million Americans -- may cause cancer. But the American Chemistry Council, the main industry lobby group, urged delay. EPA did delay, on the recommendation of a science panel that was supposed to be independent -- but was secretly stacked with panelists tied to the industry. In fact, they had helped industry oppose hexavalent chromium lawsuits instigated by Erin Brocovich.

"The agricultural giant Monsanto has sued hundreds of small farmers in the United States in recent years in attempts to protect its patent rights on genetically engineered seeds that it produces and sells, a new report said on Tuesday."

"New York State's decision to lift a four-year ban on natural gas drilling faced further delay on Tuesday after officials conducting a key health impact study asked for more time to form their conclusions on the divisive issue."

"HOUSTON -- More than 80 environmental groups on Monday demanded a broad investigation into whether the U.S. Environmental Protection Agency behaved improperly when it abruptly dropped enforcement actions against a gas driller it had accused of contaminating water in Texas."

"Multinational food, drink and alcohol companies are using strategies similar to those employed by the tobacco industry to undermine public health policies, health experts said on Tuesday."

"HOUSTON -- In another blow to its Alaskan Arctic drilling program, Royal Dutch Shell said on Monday that it had decided to tow its two drill vessels there to Asian ports for major repairs, jeopardizing its plans to begin drilling for oil in the icy northern seas next summer."

"President Barack Obama’s annual addresses to Congress offer a glimpse at a leader whose rhetoric on energy and the environment has changed dramatically over the past four years -- from his calls to pass sweeping climate legislation in 2009 to a full-throated embrace of natural gas last year."

"The Interior Department will investigate whether mining companies are gaming the federal government by skirting royalty payments, a pair of senior senators announced Friday."