Denise Walker

Restoring wetlands in the Sacramento-San Joaquin Delta (Delta) can mitigate subsidence, sequester carbon, reduce GHG emissions, and provide habitat for wetland dependent species. These benefits–their magnitude, scope, and resilience to future sea level rise–depend on the type and siting of new wetlands; rates of carbon accumulation, GHG emissions, and vertical accretion; and opportunities for wetlands to migrate upslope.

Sediment Solutions is a timely and innovative project that builds on SFEI’s past work, operationalizing cutting-edge science to inform management approaches that take advantage of natural processes to provide more creek sediment to baylands, increase climate resilience, and enhance creek health. With study areas in North Bay, East Bay, and South Bay, the project will provide new guidance for management strategies that support flood risk management and ecosystem health benefits throughout the region.

The largest brackish marsh on the West Coast, Suisun Marsh is a unique transitional landscape between San Francisco Bay and the Sacramento-San Joaquin Delta. The Marsh supports high ecological diversity and has long been managed for recreational hunting and native species support, yet it is threatened by an uncertain future under climate change. Effective adaptation in Suisun will require coordinated, science-based planning by agencies and private landowners.

Protecting carbon stocks and increasing carbon sequestration can support climate change mitigation and maintain healthy, resilient ecosystems. To support SFPUC managers in making informed carbon management decisions, the Alameda Watershed Carbon Assessment offers scientific guidance on the watershed’s current and potential performance as a natural climate solution. This assessment was framed by two main objectives: to quantify current carbon stocks in the Alameda Watershed, and to evaluate opportunities to enhance carbon sequestration in its vegetation and soils.

Working with other scientists, agency staff, and regional and state-level managers and planners, we are building alignment and capacity for blue carbon quantification through science synthesis, outreach, and mapping.