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Fact Sheet

Sea Level Rise in California

By Letitia Grenier, Gokce Sencan

Sea levels are rising, and Californians are already feeling the impact. Adaptation will require new forms of collaboration and coordination—as well as working with nature—to find solutions.

blog post

Who’s Leaving California—and Who’s Moving In?

By Hans Johnson, Eric McGhee

The primary driver of California's population loss over the past few years has been residents moving to other states. We examine the latest demographic data for those moving out of and into our state and discuss factors that underlie these decisions.

Report

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?

blog post

Seasonal Weather Predictions Are Elusive in California

By Sarah Bardeen

California urgently needs to improve its precipitation forecasting: this could help the state better manage its water supply and prepare for disasters, among other things. But that’s not as easy as it sounds, says Dr. Xianan Jiang, a UCLA researcher. We asked him to tell us more.

blog post

Commentary: Water-use Challenges Affecting Farmers Means Reinventing the San Joaquin Valley

By Ellen Hanak, Caitlin Peterson

To ensure the San Joaquin Valley’s future, groundwater overpumping has to end—and some 500,000 acres of farmland will likely need to come out of intensively irrigated production. But unplanned, haphazard fallowing would harm the valley. In our Fresno Bee commentary, we share insights on how to protect the valley’s residents, agriculture, and environment, drawing on over seven years of research.

Report

Managing Water and Farmland Transitions in the San Joaquin Valley

By Ellen Hanak, Andrew Ayres, Caitlin Peterson, Alvar Escriva-Bou ...

How can the San Joaquin Valley adapt to a future with less water? We’ve been researching this issue for the past seven years, and our new report presents highlights from we’ve learned, including a robust list of policy suggestions to help the valley weather—and make the most of—the coming changes.

data set

PPIC Farm Sizes in the San Joaquin Valley: Water Data

This dataset summarizes surface water availability metrics for farms of different sizes in the San Joaquin Valley as well as volumes of groundwater needed to support allocations for potentially vulnerable users under the Sustainable Groundwater Management Act.

blog post

How Might Small Farms Fare Under SGMA?

By Spencer Cole, Ellen Hanak, Alvar Escriva-Bou

Change is coming to the heavily agricultural San Joaquin Valley, as irrigation water declines due to climate change, new environmental regulations, and SGMA. But how will these changes affect farms of different sizes in the valley? We finally have answers.

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