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Fact Sheet

The Sacramento–San Joaquin Delta

By Jeffrey Mount, Ellen Hanak, Greg Gartrell

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.

blog post

Drought Watch: Saving the Fish

By Jeffrey Mount

This is part of a continuing series on the impact of the drought.

In a recent California WaterBlog post, Peter Moyle of the University of California, Davis—a frequent collaborator on PPIC projects—highlights an issue not much discussed in the context of this drought: we ignore fish and wildlife at our peril.

Report

Storing Water for the Environment

By Sarah Null, Jeffrey Mount, Brian Gray, Kristen Dybala ...

Large reservoirs are essential for managing water in California’s highly variable climate—but over the years, the construction and operation of these reservoirs have had significant environmental costs. Our new research outlines how reservoir operations could be changed to improve the health of the state’s fragile freshwater ecosystems.

Report

Managing Water for the Environment During Drought: Lessons from Victoria, Australia

By Jeffrey Mount, Brian Gray, Caitrin Chappelle, Nathaniel Seavy ...

Drought management tools developed to sustain Australia’s environment during a decade-long drought are broadly applicable in California and could help the state’s water managers reduce the devastating effects of water scarcity on native species and ecosystems. This report identifies four broad areas of reform that could improve how the state allocates environmental water during dry times, and reduce conflict over the use of water for environmental purposes.

This research was supported with funding from The David and Lucile Packard Foundation, the US Environmental Protection Agency, and the Water Foundation, an initiative of the Resources Legacy Fund.

Report

What If California’s Drought Continues?

By Ellen Hanak, Jay Lund, Jeffrey Mount, Peter Moyle ...

California is in the fourth year of a severe, hot drought—the kind that is increasingly likely as the climate warms. Although no sector has been untouched, impacts so far have varied greatly, reflecting different levels of drought preparedness. Urban areas are in the best shape, thanks to sustained investments in diversified water portfolios and conservation. Farmers are more vulnerable, but they are also adapting. The greatest vulnerabilities are in some low-income rural communities where wells are running dry and in California’s wetlands, rivers, and forests, where the state’s iconic biodiversity is under extreme threat. Two to three more years of drought will increase challenges in all areas and require continued—and likely increasingly difficult—adaptations. Emergency programs will need to be significantly expanded to get drinking water to rural residents and to prevent major losses of waterbirds and extinctions of numerous native fish species, including most salmon runs. California also needs to start a longer-term effort to build drought resilience in the most vulnerable areas.

Report

Policy Priorities for Managing Drought

By Ellen Hanak, Jay Lund, Jeffrey Mount, Peter Moyle ...

State, federal, and local water managers have worked diligently to reduce the economic, social, and environmental harm from the current drought. But as the drought continues, the challenges will grow more acute. California can learn from experiences to date—and from Australia’s response to its Millennium Drought—to better prepare both for the year ahead and for future droughts. State leaders should address weaknesses in four areas of drought preparation and response, by: 1) improving water use information, 2) setting clear goals and priorities for public health and the environment, 3) promoting water conservation and more resilient water supplies, and 4) strengthening environmental management.

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