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Population growth and climate change are rapidly draining the global supply of potable water. Scientists and water officials from around the world teamed up in San Diego this week to look for solutions.

Greenhouse gas carbon dioxide (CO2) is increasing at a steep rate in the Earth's atmosphere and approaching a troubling new milestone: The heat-trapping gas could reach sustained levels of 400 parts per million of carbon dioxide by next month.

The wet winter has created an abundant water supply in reservoirs throughout the state. Last month, Governor Jerry Brown declared the drought to be over, and the Metropolitan Water District of Southern California recently announced that it will end the water supply restrictions it implemented in 2009. What will this news mean for ratepayers in San Diego County? And, what will the County Water Authority and the city water department do to ensure we have a sustainable, consistent water supply in the future? We'll speak to representatives from the Metropolitan Water District, the San Diego County Water Authority and the city's Public Utilities Department.

Trout fishing is a magnet that draws people from around the world to places like Ovando, Mont. Just ask the owner of Blackfoot Angler and Supplies, Kathy Schoendoerfer.

Florida's Indian River lagoon is a rich estuary, home to dolphins, manatees and turtles. But in recent months, it has become clear that something is wrong. Scientists and government officials blame water discharges from Lake Okeechobee and an upswing in pollution.

More permutations in the saga of San Diego's mayor, a Jack in the Box in North Park serves up resentment over a remodel and Congressman Darrell Issa receives an award for denying climate change.

A fire that raged in forest land in and around Yosemite National Park has left a barren moonscape in the Sierra Nevada mountains that experts say is larger than any burned there in centuries.

Some 800 metric tons of food are on the way to East Africa, where more than 12 million people are suffering from a severe drought. And a U.S. veteran who was shot down in Somalia in 1993 says he'd be willing to fly aid in.

A study finds there may be a way to boost some of the beneficial compounds in plants by simulating the light-dark cycle after crops are harvested. Plants use circadian rhythms to help them judge when to turn on their chemical defenses.

Russia's drought and massive wildfires have sent wheat prices through the roof. Fortunately, most U.S. wheat farmers have had a stellar harvest and are likely to help meet global demand. That's especially the case in Colorado, which exports 80 percent of the wheat it produces.