"Wading into one of the hottest environmental debates in the nation, California on Tuesday released its first-ever regulations for hydraulic fracturing, or "fracking," the increasingly common -- and controversial -- practice of freeing oil and gas from rock formations by injecting chemicals under high pressure into the ground."

"The demand for coal will increase in every region of the world through 2017 except in the United States, where low-cost natural gas will continue providing tough competition, the Paris-based International Energy Agency said [Tuesday] morning."

"Global funding for the fight against malaria has stalled in the past two years, threatening to reverse what the World Health Organisation (WHO) says are 'remarkable recent gains' in the battle to control one of the world's leading infectious killers."

"Study published by Lancet says surge in car use in south and east Asia killed 2.1m people prematurely in 2010."

"Energy in Depth prepares 'cheat sheet' of pro-fracking talking points before release of Gus Van Sant drilling-rights drama."

"As economic activity and populations continue to expand in coastal urban areas, particularly in Asia, hundreds of trillions of dollars of infrastructure, industrial and office buildings, and homes are increasingly at risk from intensifying storms and rising sea levels."

"OSLO -- The amount of land needed to grow crops worldwide is at a peak and an area more than twice the size of France can return to nature by 2060 due to rising yields and slower population growth, a group of experts said on Monday."

The federal tax credit for wind energy expires December 31, unlike many subsidies for fossil fuels. Congressional inaction could doom or hobble many green entrepreneurs.