​California’s beaches are threatened by sea level rise. By 2100, up to 67 percent of California's iconic beaches are expected to disappear entirely. But the impacts of these losses will not be distributed evenly among California’s diverse population. Sustaining beaches and equitable access will require coordinated efforts among stakeholders, as well as the knowledge of how resilient each beach is and how their management affects access, use, environmental justice and economic value. 

The two most important Chinook salmon stocks for fisheries in California — the Sacramento River Fall Chinook and the Klamath River Fall Chinook — were designated as overfished in 2018. Assessment errors could have contributed to the decline. Regulatory agencies use forecast models before each season to set harvest levels and to develop long-term management strategies. For Sacramento River Fall Chinook, a preseason overforecast of abundance resulted in overharvesting.