Greenhouse gases: soil carbon sequestration.

The California Global Warming Solutions Act of 2006 establishes the State Air Resources Board as the state agency responsible for monitoring and regulating sources emitting greenhouse gases and requires the state board to ensure that statewide greenhouse gas emissions are reduced to at least 40% below the 1990 level no later than December 31, 2030. The act declares the policy of the state to achieve net zero greenhouse gas emissions as soon as possible, but no later than 2045, and to achieve and maintain net negative greenhouse gas emissions thereafter. The act also requires the Natural Resources Agency, in collaboration with specified entities, to determine an ambitious range of targets for natural carbon sequestration, and for nature-based climate solutions, that reduce greenhouse gas emissions for 2030, 2038, and 2045 to support state goals to achieve carbon neutrality and foster climate adaptation and resilience. The act requires the Natural Resources Agency and the state board to establish an expert advisory committee composed of specified entities to provide recommendations on addressing barriers to efficient implementation of the provisions relating to climate targets. This bill would additionally require that expert advisory committee to include an expert in soil carbon sequestration. The bill would establish the Climate-smart Organics Management for Protecting Our Soil and Terrain (COMPOST) Act of 2026. The bill would require the Natural Resources Agency, in collaboration with specified entities, to, on or before January 1, 2028, develop an integrated nature-based climate strategy to link waste diversion goals with soil health practices on natural and working lands. The bill would require the strategy to include multiagency recommendations and incentives to increase climate-friendly on-farm compost production and use, including compost application on grasslands and priority rangeland for improved vegetation and carbon storage. The bill would require the recommendations to be consistent with specified publications, standards, and strategies, including the reduction of at least 5,000,000 metric tons of greenhouse gas emissions in the state annually. This bill would require the Secretary of the Natural Resources Agency to use best available science, mapping, and land management planning tools to support prioritization, siting, and deployment of soil amendment strategies to maximize climate benefits. The bill would require the Natural Resources Agency to publish, and annually update, the nature-based climate strategy for compost on its internet website.