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Drought and Floods in California

By Ashlyn Perri

“Weather whiplash,” “atmospheric rivers,” “severe drought”—if you live in California, this is probably not the first time you’ve seen these phrases. But why are these wild weather swings happening, and what do they mean for California?

blog post

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.

blog post

Video: Managing Water and Farmland Transitions in the San Joaquin Valley

By Sarah Bardeen

For the past seven years, the PPIC Water Policy Center has been researching how the San Joaquin Valley can adapt to a future with less water. On September 20, we held a special half-day event that drew together an array of growers, water managers, agency staff, and others to discuss how to best manage the changes ahead. Read our writeup—and watch the videos!

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

Renewing California’s Groundwater: Ready, Set, Recharge!

By Caitlin Peterson, Sarah Bardeen

California’s wet winter has been a boon for the parched state, and farmers and water managers have been scrambling to funnel some of that abundance into the ground. But how is recharge going—and what could be improved? We get on-the-ground insights from Daniel Mountjoy of Sustainable Conservation and Aaron Fukuda of the Tulare Irrigation District.

blog post

Metropolitan Water District: “We’re the Squirrels of the Water System”

By Sarah Bardeen

Deven Upadhyay is the assistant general manager and executive officer for the Metropolitan Water District of Southern California, which provides water to 19 million people. This week on the blog, Upadhyay describes how Met is handling California’s recent precipitation whiplash—and shares some improvements that are in the works.

blog post

Video: Making the Most of a Wet Year

By Sarah Bardeen

Last week, we hosted an expert panel to discuss how we’re handling the sudden deluge of precipitation after years of drought. While the rain and snow has helped transform what was a grim water supply situation, it’s clear that we need to do a better job of preparing for floods—and storing some of that excess water for the dry times that will return.

Fact Sheet

Water Use in California

By Jeffrey Mount, Ellen Hanak, Caitlin Peterson

To understand California’s water, start here. Water use in California varies dramatically between wet and dry years: learn who’s using California’s water, where, and how much.

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