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Relentless rains have pounded north-central Texas and southwest Oklahoma over the past two weeks. At least 11 people have died. Thousands have scrambled to safety. Fire ants and snakes are the next worry.

Major wildfires have drained manpower and financial resources in several western states. Since 1960, six of the 10 worst fire seasons — counting acres burned — have occurred in the last seven years.

The latest science on global warming released today shows that climate change is happening at an alarming rate. The first part of a major study on global warming includes the work of several San Diego

Thousands of puppies are smuggled into the U.S. from Mexico every year. But many have been bred irresponsibly and carry genetic diseases or sicknesses.

As the reservoir behind the Three Gorges Dam on the Yangtze River is to be filled to capacity, controversy has resurfaced, following official admissions that the dam could cause major ecological disasters unless preventive measures are taken.

Why are those netbook computers so popular right now? What's the newest 3G phone on the market? And, are consumers spending less on tech gadgets this holiday season? We speak to Brian Cooley from CNET about this year's most innovative, and sought-after tech gadgets.

What steps can be taken to reverse global warming? One approach is to plant trees, which soak up carbon dioxide. The San Diego Regional Energy Office runs a program to plant trees in urban areas throu

The ultimate clean fuel, at least at first glance, is vegetable oil. Plants make it from sunlight, water, and a greenhouse gas — and they remove carbon dioxide from the air as they grow. The oil is easily converted into fuel for diesel engines. Around the globe there's now a rush toward so-called "biodiesel."

If you look outside your front window, chances are you'd see a lot of green lawns -- especially if you live in the suburbs. But in a climate with little rain, and hot dry summers, should we be seeing green? Joanne Faryon has more.

After five years, James Morris is leaving his post as head of the U.N.'s World Food Program. He says he will remain haunted by the knowledge that 400 million children are living in hunger. He says it's a problem that the world should be able to resolve.