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Climate change and warmer temperatures are already hurting agriculture in California.

An ancient coal-fired power plant that has generated electricity -- and pollution -- in the heart of the nation's capital is finally closing for good.

"Disposed World War II explosives and munitions in the Gulf of Mexico pose a threat to offshore oil drilling, according to Texas oceanographers."

"Swift action is required to save many of the world's fisheries that are declining faster than expected, a study in a leading scientific journal shows."

"FLAGSTAFF, Ariz. — Klee Benally, a member of the Navajo tribe, has gone to the mountains just north of here to pray, and he has gone to get arrested. He has chained himself to excavators; he has faced down bulldozers. For 10 years, the soft-spoken activist has fought a ski resort’s expansion plans in the San Francisco Peaks that include clear-cutting 74 acres of forest and piping treated sewage effluent onto a mountain to make snow."

"Pregnant rats exposed to an industrial pollutant passed on a variety of diseases to their unexposed great-grandkids, according to a study published Wednesday."

"Installed EU wind capacity has reached the 100 gigawatt mark - the equivalent of power generated from 39 nuclear plants or a train of coal stretching from Buenos Aires to Brussels - but financial risk threatens growth, industry body EWEA said."

"BROOKLYN, N.Y. -- With each steady stroke, John Lipscomb inched the canoe deeper into an infamous urban waterway. The water surrounding the boat grew increasingly murky; the sulphuric stench more offensive."

"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."

"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."