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What Are Baseflow Droughts—and Why Should We Care?

By Sarah Bardeen

For the six months when California receives no rain, how do its rivers keep flowing? The answer is groundwater. But increasingly frequent and intense droughts are having unexpected effects on this vital resource. We speak with two experts to learn more.

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The Future of Fog

By Sarah Bardeen

Fog is central to life in California, but climate change is going to disrupt this quintessentially Californian weather experience. We asked Todd Dawson, a scientist who has long studied the relationship between fog and redwoods, to divine the future of fog for us.

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What’s Worse Than a Flood? A Debris Flow

By Sarah Bardeen

Move over, floods—there’s a new natural disaster in town: debris flows. We know that debris flows can be even more destructive than floods, but what are they and why do they happen? We speak with expert Jimmy Guilinger to learn more.

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The Colorado River’s Hydrology is Changing. Can We Adapt?

By Letitia Grenier, Sarah Bardeen

The Colorado River’s hydrology is changing—and the dwindling water supplies are hitting Southern California hard. We sat down with Colorado River Board of California’s chairman JB Hamby and Metropolitan Water District’s Bill Hasencamp to find out what’s next for the river.

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Making Sense of the Floods in San Diego

By Sarah Bardeen

The sudden deluge in San Diego last week has left some of that city’s communities reeling. But what actually caused the epic flooding—and could it have been avoided? We ask the experts.

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Commentary: Californians Need to Do More to Prepare for Wet Years

By Letitia Grenier, Ellen Hanak

Climate change is supercharging the extremes of drought and flood in California. But our infrastructure and institutions remain woefully underprepared for rising flood risk and increasingly erratic rainfall. It’s time to take this threat—and this opportunity—seriously and accelerate preparations.

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