"Scientists have found a way to forecast El Nino weather events in the Pacific a year in advance, long enough to let farmers plant crops less vulnerable to global shifts in rainfall, a study showed on Monday."

"The El Nino weather pattern that can bring drought to Australia and rain to South America was 'unusually active' at the end of the 20th century, possibly due to climate change, a University of Hawaii study found."

"Researchers studied 2,222 tree-ring records as proxies for temperature and rainfall over the past 700 years, the university wrote in an online statement dated yesterday. The records indicate the El Nino-Southern Oscillation weather phenomenon has been increasingly active in recent decades relative to the past seven centuries.

"Our planet's climate is rapidly changing and threatening the future of our civilization, yet mainstream media outlets and many conservatives continue to ignore the problem. Why?"

"Koch Industries, one of the largest privately held corporations in the world and principally owned by billionaires Charles and David Koch, has developed what may be the best funded, multifaceted, public policy, political and educational presence in the nation today."

"FURNACE CREEK--Blame it on dueling thermometers. The National Weather Service thermometer recorded a peak temperature at 4 p.m. Sunday of 128 degrees in Death Valley National Park, which ties the record for the hottest June day anywhere in the U.S."

"SEQUOIA NATIONAL FOREST, Calif. -- In parts of California's Sierra Nevada, marshy meadows are going dry, wildflowers are blooming earlier and glaciers are melting into ice fields."

"Bad news for American gourmets: the commercial oyster industry in the Pacific Northwest has been failing for several years, and may go on failing as increasingly acid oceans put the larvae of the bivalve Crassostrea gigas seriously at risk."

"Just a day before President Obama announced he would only approve the Keystone XL pipeline if it 'does not significantly exacerbate the climate problem,' six environmental groups quietly lodged a protest with the State Department charging it would do exactly that."

"President Barack Obama has vowed to tackle climate change in his second term, but so far has not acted to strengthen a tool that does not require backing from Congress - the National Environmental Policy Act."

"President Barack Obama's plan to curb climate change could transform American energy, potentially dealing a blow to the coal-fired power plants that supply much of the nation's electricity but also pump planet-warming gases into the atmosphere."

"Shortly after prodding India in a New Delhi speech to find ways to cut greenhouse gas emissions, Secretary of State John Kerry sent a 'Your Dot' piece emphasizing that he sees this as a partnership between two dynamic, innovative democracies."

"Every year, people add 30 billion tons of carbon dioxide to the air, mostly by burning fossil fuels. That's contributing to climate change. A few scientists have been dreaming about ways to pull some of that CO2 out of the air, but face stiff skepticism and major hurdles. This is the story of one scientist who's pressing ahead."

"A potentially deadly heat wave is expected to bear down on some Arizona and California desert areas in the next few days, forecasters said on Wednesday."

"WASHINGTON -- President Obama, declaring that 'Americans across the country are already paying the price of inaction,' announced sweeping measures on Tuesday to reduce greenhouse gas pollution and prepare the nation for a future of rising temperatures."

"President Obama set a high bar for approval of the controversial Keystone XL pipeline, declaring for the first time that he would let the project go forward only if it does not 'significantly increase' emissions of greenhouse gases."