"CHEYENNE, Wyo. -- A land conservation group has reached a long-sought agreement to prevent a gas drilling project near a southern approach to Jackson Hole and Grand Teton National Park by buying out a vast area of mineral leases."

"The actor Daryl Hannah was arrested in northeast Texas on Thursday, along with a landowner as the pair protested against an oil pipeline designed to bring crude from Canada to the Gulf Coast."

"A standoff between environmentalists in trees and workers clearing the way for a Texas portion of the Keystone XL pipeline has led crews to move around the protesters."

"Barry Commoner, a founder of modern ecology and one of its most provocative thinkers and mobilizers in making environmentalism a people’s political cause, died on Sunday in Manhattan. He was 95 and lived in Brooklyn Heights."

"If all had gone according to plan, the Millennium Bulk Logistics Terminal near Longview, Wash., would have begun shipping coal to Asia in the late fall. The Gateway Pacific Terminal at Cherry Point, just north of Bellingham, Wash., would begin construction in 2013."

"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."