blog post Commentary: Four Strategies for Managing California’s Crucial Watershed By Ellen Hanak, Greg Gartrell May 23, 2022 California is not doing a good job of tracking changes to the Sacramento–San Joaquin Delta and its watershed. In our recent commentary, we argue that’s making it even tougher to manage the water that is available for the benefit of the state’s communities, economy, and environment.
Fact Sheet The Sacramento–San Joaquin Delta By Jeffrey Mount, Ellen Hanak, Greg Gartrell May 18, 2022 The Sacramento–San Joaquin Delta is California’s largest estuary and a vital hub in the state’s water supply system. Three interlinked issues currently face the Delta: an increasingly unreliable water supply, a decline in ecosystem health, and a fragile system of levees. Learn more about this key watershed in our new fact sheet.
Policy Brief Policy Brief: Tracking Where Water Goes in a Changing Sacramento–San Joaquin Delta By Greg Gartrell, Jeffrey Mount, Ellen Hanak May 16, 2022 The Sacramento–San Joaquin Delta supplies water to roughly 30 million Californians, over 6 million acres of farmland, and countless ecosystems. But the watershed’s climate is changing: recent decades have seen record warmth, higher evaporation, and declining snowpack. We track where the water is going—and how to adapt.
data set PPIC Delta Water Accounting May 16, 2022 These spreadsheets contain all data, sources, and methods used to calculate water use in California’s Sacramento–San Joaquin Delta, including estimates of outflow needed to meet regulations; ecological, export, and municipal and industrial uses; and watershed-level water sources and upstream depletions.
Policy Brief Policy Brief: Drought and California’s Agriculture By Alvar Escriva-Bou, Josué Medellín-Azuara, Ellen Hanak, John Abatzoglou Apr 13, 2022 California’s agricultural sector is the nation’s largest: it generates more than $50 billion dollars in annual revenue and employs more than 420,000 people. The ongoing drought is taking a toll on agriculture, related sectors, and rural communities, but there are ways to increase resilience in a warming world.
blog post Water Trading Can Help California’s Struggling Freshwater Ecosystems By Ellen Hanak, Gokce Sencan Apr 4, 2022 California’s freshwater ecosystems are struggling—but water trading has helped in the past, and that could continue. We provide fresh data on the current state of environmental water transfers and highlight ways to improve them.
blog post What’s Really Important? Putting Recent Water News into Perspective By Sarah Bardeen Dec 8, 2021 Last week, three major stories about California’s water supply dominated the news. We asked PPIC Water Policy Center director Ellen Hanak and senior fellow Jeff Mount to share their perspectives on what’s really important about these stories.
event Seizing the Drought: Water Priorities for Our Changing Climate Nov 15, 2021 The PPIC Water Policy Center will convene a diverse group of experts to discuss how to tackle the highly disruptive effects of climate change on our water system. It’s clear that we must step up our game to cope with the increasingly severe, warm droughts that are coming our way. This year’s conference will identify immediate actions we can take to boost the state’s resilience.
blog post The Current Drought: Time to Hope for the Best, Prepare for the Worst By Alvar Escriva-Bou, Ellen Hanak Nov 8, 2021 Last month’s atmospheric river brought California some much-needed rain. But our new analysis shows it would take an exceptionally wet year to lift the state out of drought conditions.
blog post Last Week’s Storm: the Good, the Bad, and the Inconclusive By Jeffrey Mount Nov 1, 2021 The storm of October 24th broke one-day precipitation records throughout Northern California, but did this unusually intense atmospheric river lead to significant changes in our drought picture? PPIC Water Policy Center senior fellow Jeffrey Mount explains what the storm did—and didn’t—do for the state.
