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Four years of too little water is killing millions of trees in the Sierra, yet some giant sequoias still thrive. Tree-climbing scientists are exploring sequoias branch by branch to find their secret.

Meet 2020 World Food Prize Laureate: Rattan Lal. His "soil-centric" philosophy is praised as being good for crops — and for mitigating climate change.

Ghosh's latest book, Gun Island, is a modern retelling of a Bengali myth. He believes old legends have a lot to teach us about how to think about the catastrophic effects of climate change.

One of the most stubborn fires to be declared out this week was a 2,000-acre beast that had been burning since July.

California will deliver more water this year than it has for each of the last three, as spring storms have nearly filled the state's major reservoirs.

More than a decade ago, the issue seemed distant to Americans' experiences. But now polls show a dramatic rise in concern, driven partly by extreme weather.

KPBS Roundtable Host Mark Sauer checks in with Alex Tardy from the National Weather Service to talk about the weather science behind the desert bloom in Anza-Borrego.

Two fires have merged into a single blaze more than three times as big as California's largest-ever known fire. A quarter of a million people have been urged to evacuate towns south of Sydney.

In the half-century since 1970, the number of birds in North America has declined by an estimated three billion — that's a 29 percent decrease.

San Diego's wet winter is winding down but there may still be rain coming.