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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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Video: Eel River—Reconnecting Salmon and People

By Sarah Bardeen, Cameron Nielsen

The Eel River once hosted one of California’s great salmon runs, but a combination of factors decimated those populations. Now, planned dam removals might help restore salmon—but how will these changes affect river communities? Filmmaker Cameron Nielsen spoke to people on all sides of the issue in this visually arresting short documentary

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A Look Back at 2023’s Volatile Year in Water

By Letitia Grenier

Volatility was the name of the game in 2023, as drought-weary California suddenly found itself inundated by atmospheric rivers—and the changes kept coming. We look back on California’s weird (and sometimes wonderful) year in water.

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Addressing Groundwater Overdraft in the Sacramento Valley

By Spencer Cole, Kyle Greenspan, Andrew Ayres

As the Sacramento Valley seeks to bring its groundwater basins into balance under SGMA, the valley’s groundwater sustainability agencies recently submitted plans to manage overdraft. Do the numbers add up? Our researchers take a look.

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Priorities for California’s Water

By Jeffrey Mount, Letitia Grenier, Ellen Hanak, Caitlin Peterson ...

California has made great strides in preparing for a drier, hotter future, but it remains a challenge to harness the bounty of wet years while also reducing flood risk. How did California’s water sector manage the unusually wet 2023 water year—and what lessons can we glean for the future?

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The Weird Weather of 2023: Better Get Used to It

By Jeffrey Mount, Gokce Sencan, Michael Dettinger

Water Year 2023 comes to an end on September 30. For most weather-watchers, this was an unusual year, with very wet conditions following several very dry years—but are the frequency and intensity of these variations increasing as the planet’s temperature rises? And if so, what might be the implications for water management? We take a look.

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