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Independent, objective, nonpartisan research
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PPIC Water Policy Center

Freshwater Ecosystems

Dramatic changes in water and land use across the state have transformed California’s freshwater landscape and are putting many fish, bird, and other species at risk. Rising temperatures are putting additional pressure on ecosystems already pushed to the brink.

photo - Long Billed Dowitchers
Featured Blog Post · February 23, 2026

A Network of Wetlands Thrives in the Heart of the San Joaquin Valley

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