"A handful of environmental groups are amplifying calls Thursday for President Obama and GOP presidential candidate Mitt Romney to speak up on climate change after a summer of devastating drought, fires, storms and heat."

"Rachel Carson wasn't someone you'd expect to spark a movement. She was a quiet, petite woman who grew up poor, lived most of her life with her mother and relished solitary walks along the beach, watching birds and fish. Yet 50 years ago Thursday, this marine biologist published Silent Spring, widely credited with spurring the modern environmental movement."

"WINNSBORO, Texas -- Two anti-tar sands pipeline activists were arrested in east Texas on Tuesday as demonstrators continue a three-day-old tree-sit to block TransCanada’s Keystone XL pipeline."

Shannon Bebe of Dallas and Benjamin Franklin of Houston delayed pipeline construction for most of the day when they locked arms around construction machinery being used by TransCanada to build the southern branch of a pipeline from the Alberta tar sands to refineries on the Gulf Coast.

"On June 4, 1963, less than a year after the controversial environmental classic 'Silent Spring' was published, its author, Rachel Carson, testified before a Senate subcommittee on pesticides. She was 56 and dying of breast cancer. She told almost no one. She'd already survived a radical mastectomy. Her pelvis was so riddled with fractures that it was nearly impossible for her to walk to her seat at the wooden table before the Congressional panel. To hide her baldness, she wore a dark brown wig."

"WASHINGTON -- House lawmakers skipped out of town on Friday until after the November elections, but not before pushing through a sweeping anti-environmental package that has no chance of becoming law."

"PHILADELPHIA -- Demonstrators in the United States and other countries protested Saturday against the natural gas drilling process known as fracking that they say threatens public health and the environment."

"Recent action by Koch Oil Sands pulls the curtain back further on the Koch family's deep but quiet involvement in Canada's oil sands industry."

"ALBANY, N.Y. — An environmental group is suing the Cuomo administration over public records pertaining to the state's communications with energy industry interests hoping to drill for shale gas in New York using hydraulic fracturing."

"Two Pacific Northwest conservation organizations are seeking permission from a federal court in Washington to fight a lawsuit that aims to limit the use of science to help manage U.S. national forests."

"An environmental activist from West Virginia who fought a coal-mining technique that flattened mountains, died on Sunday at age 66, according to his foundation."

"The case of Julia Trigg Crawford versus the Keystone XL oil pipeline will soon return to the headlines."

"Nature assesses the aftermath of a series of nanotechnology-lab bombings in Mexico -- and asks how the country became a target of eco-anarchists."

"TAMPA, Fla. -- 'Drill, baby, drill!' is over the hill. Four years ago, the slogan was chanted during the Republican convention and strengthened into a resounding chorus by the November election. Since then, the economy tanked, Sarah Palin lost her luster and the worst spill in the nation's history fouled the Gulf of Mexico."

"KALISPELL, Mont. -- A man dressed in a military-style 'ghillie' suit and apparently trying to provoke reports of a Bigfoot sighting in northwest Montana was struck by two cars and killed, authorities said."

"SAN FRANCISCO -- The Center for Biological Diversity filed a legal petition with the U.S. Environmental Protection Agency Wednesday that asks the agency to set plastic pollution limits for ocean waters under the Clean Water Act."