Planning for climate resilience in California's freshwater ecosystems

California's unique geomorphology and Mediterranean-type climate have largely shaped the state's freshwater lakes, streams, rivers, and wetlands. Now, however, freshwater ecosystems are stressed by water diversion, land use changes, non-native species, sedimentation, and nutrient loading, which are compounded by increases in water temperatures and changes in snowmelt and runoff patterns driven by anthropogenic climate change.