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A drought in 2005 turned one of the world's largest carbon absorbers into a carbon emitter. Global warming trends predict the Amazon rainforest will continue to dry, potentially ending its ability to suck more CO2 from the atmosphere than it absorbs.

Climate models predict the Phoenix area will only get hotter. What does that mean for the four million residents who must adapt to a new reality?

Much of the rest of the country is either recovering from snowstorms or expecting them. But San Diego should have a typically mild Christmas weekend.

Scientists are racing to genetically engineer strains of rice that can prevent the deadly famines that come with drought and floods in Asia. One new strain causes part of the plant to elongate, acting as a snorkel.

The insect, known as the coffee berry borer, has the potential to reduce crop yields by up to 90 percent. Agriculture specialists have called for mandatory treatment of all beans leaving Kona for other islands.

The bill covers everything from farm subsidies and crop insurance to forestry, food stamps and school lunches.

The season’s first snow survey yielded phenomenal results, according to the Department of Water Resources.

Firefighters on Sunday were fighting wildfires that have spread quickly in parched forests in Colorado and New Mexico, forcing hundreds of people from their homes and the evacuation of wolves from a sanctuary.

Searing, record-setting heat in the interior West didn't loosen its grip on firefighters struggling to contain blazes in Colorado, Utah and other Rocky Mountain states.

California's water wars have long been waged in courtrooms, but shots are now being fired on the Internet as well.