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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.

Demand from the ethanol and livestock industries, big orders from China and a forecast of lower crop yields all mean one thing: Corn prices are soaring. That's welcome news for farmers. But some aren't sure when to sell because they fear they'll miss the boat on even higher prices.

So often, we take water for granted. We turn on the faucet and there it is. We assume it's our right in America to have water. And yet, water is a resource. It's not always where we need it, or there when we need it.

The La Niña weather pattern that delivered record rain to San Diego last year is re-emerging in the Pacific Ocean, but this time, the condition is more likely to keep our region dry.

Climate Change, Drought and Endangered Fish Create "Perfect Storm"

Investors looking for safer and more profitable investments have been buying farmland across the Midwest, and the price of land is rising fast. But some economists say cropland prices can't go up forever and that investors are turning farmland into a bubble.

One grew up in the Southwest and moved to the Midwest; the other did the opposite. They compare the culture shock of moving to the other's home locale.

This year, Hoover Dam celebrated its 75th anniversary. The giant dam near Las Vegas stores Colorado River water for much of the Southwestern U.S.

With the death, destruction, flooding, power outages and transportation disruptions caused by Sandy the Superstorm, it may seem crass to ask about the impact on next week's election.

China burns nearly as much coal as the rest of the world combined--and has 300 more coal plants in the works. But China also leads the world in solar panel exports and wind farms, and has a national climate change policy in place. Is the U.S. falling behind on climate? Ira Flatow and guests discuss how the world is tackling global warming--with or without us--and what it might take to change the climate on Capitol Hill.