Assessment Research

California’s Fifth Climate Change Assessment is a portfolio of reports, research, and resources that contribute to the scientific foundation for understanding climate-related vulnerability throughout the state to help communities understand and develop informed responses to the impacts of climate change. The Fifth Assessment’s research and tools are designed to fill knowledge gaps about California’s climate future, inspire strategic climate actions, and shape planning, investments, and policies at the state, regional, and local scales. These products are accessible below by category, or see the full list.