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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.

Forests are fast becoming a great green hope for slowing climate change. Climate planners are keen to create forest carbon banks, places designed to store carbon and keep it out of the atmosphere. But banking carbon in forests turns out to be something of a mystery.

San Diego County farmers produce more avocados each year than anywhere else in the United States. But that number one ranking could change by the end of the year, because the region’s avocado industry is facing pressures.

A new report says ocean water desalination is not the answer for drought and water shortages. The report comes as a Connecticut-based company moves forward with plans to build a desal plant in Carlsba

The remarks of President Obama, as released by The White House and prepared for delivery:

The wet season arrived early this year for much of California, even as Lake Mead has dropped to record low levels.

This week, the U.S. Department of Agriculture is expected to release its latest update on the food stamp program. It's an important indicator of the nation's economic health — and the prognosis is not good.

California water officials are working on plans to deal with a continued drought. One of those plans could benefit San Diego County farmers. KPBS Reporter Ed Joyce has details.

Researchers believe that humanity's extraordinary ability to adapt to different environments and build tools was in part the result of drastic shifts in the Earth's climate. From centuries of drought to devastating monsoons, humans found a way to adjust to nearly everything.

A vanishing lake figures large in a court battle over how Southern California gets it water, a high-stakes dispute with consequences that could ripple throughout the western United States.