More than 50 statewide, regional, and technical reports have been published.
These summary reports include Climate Justice, Tribal and Indigenous Communities within California, and California’s Ocean and Coast.
Each of these reports provides a summary of relevant climate impacts and adaptation solutions for a region of the state.
- Central Coast Regional
- Inland Deserts
- Los Angeles
- North Coast
- Sacramento Valley
- San Diego
- San Francisco Bay Area
- San Joaquin Valley
- Sierra Nevada
- Informes Regionales en Español Sacramento
- Informes Regionales en Español San Diego
- Informes Regionales en Español San Francisco
- Informes Regionales en Español Sierra
Projecting climate change impacts and exploring what those impacts mean for various sectors.
Updated climate projection information, datasets, as well as the technical basis for the tools developed or enhanced for the Fourth Assessment.
- Climate, Drought, and Sea Level Rise
- Cumulative CO2 Emissions and their Climate Impact from Local Through Regional Scales
- Future Scenarios of Land Change
- Projected Changes in California’ Hydrologic Regions Linking Climate Science with Energy Sector Resilience
- Projected changes in California’s precipitation intensity duration-frequency curves
- Statistical Projections of Minimum and Maximum air Temperatures
- Sub-seasonal to Seasonal Temperature Predictions
- Wild Fire Simulations
Projected climate impacts to the energy sector.
- Assessing the Impact of Wildfires on California’s Electricity Grid
- Energy Infrastructure in the Sacramento – San Joaquin Delta
- Extreme Weather-Related Vulnerabilities to the Transportation Fuel Sector
- Factors that Contribute to Urban Heat Islands such as Los Angeles
- Impacts of Climate Change on the Electrical Grid and Lifelines to Los Angeles
- Impacts of Climate Change on Residential Electricity and Natural Gas Consumption
- Los Angeles Grid Vulnerability to Extreme Heat
- Methods to Hydropower Through Improved Streamflow Forecasting
- Natural Gas Sector Vulnerabilities and Resilience Options for San Diego Gas & Electric
- Sea Level Rise-related Risks to San Diego Gas & Electric
- Why Energy Efficiency Matters to Climate Change
The reports on water discuss climate risks and adaptation approaches for various sectors of water management.
- Addressing Institutional Vulnerabilities in California’s Drought Water Allocation Part 1: Water Rights Administration and Oversight During Major Statewide Droughts, 1976–2016
- Addressing Institutional Vulnerabilities in California’s Drought Water Allocation Part 2: Improving Water Rights Administration and Oversight for Future Droughts
- Advancing Hydro-Economic Optimization To Identify Vulnerabilities and Adaptation Opportunities in California’s Water System
- Climate Adaptive Response Estimation: Short and Long Run Impacts of Climate Change On Residential Electricity and Natural Gas Consumption
- Climate Change Risk Faced by the California Central Valley Water Resource System
- Climate information: Embedding climate futures within temporalities of California water management
- Development of Stage-Frequency Curves in the Sacramento – Sand Joaquin Delta for Climate Change and Sea Level Rise
- Drought Management and Climate Adaptation of Small, Self-sufficient Drinking Water Systems in California
- Gauging preparedness to managing drinking water quality for climate change in California
- Mean and Extreme Climate Change Impacts on the State Water Project
These reports cover a variety of topics related to California’s ocean and coast, including natural infrastructure, ocean acidification, communicating risk, and ecosystem carbon.
- Assessing and Communicating the Impacts of Climate Change on the Southern California Coast
- California Mussels as Bio-indicators of Ocean Acidification
- Growing Effort, Growing Challenge: Findings From The 2016 California Coastal Adaptation Needs Assessment
- Land Acquisition and Ecosystem Carbon in Coastal California
- Toward Natural Shoreline Infrastructure to Manage Coastal Change in California
These three reports present results on measuring forest carbon stocks, a review of fuel treatment for resilience, and the impact of wildfire on the California homeowners’ insurance market.
- Assessing the Impact of Wildfires on the California Electricity Grid
- Fuel Treatment for Forest Resilience and Climate Mitigation: A Critical Review for Coniferous Forests of California
- Innovations in Measuring and Managing Forest Carbon Stocks in California
- The Impact of Changing Wildfire Risk on California’s Residential Insurance Market
These three reports present findings related to using farmland to sequester carbon, as well as implications of climate change adaptation for agriculture.
- Assessment of California Crop and Livestock Potential Adaptation to Climate Change
- Carbon Sequestration and Greenhouse Gas Mitigation Potential of Composting and Soil Amendments on California’s Rangelands
- Increasing Soil Organic Carbon to Mitigate Greenhouse Gases and Increase Climate Resiliency for California
These two reports include one on connecting climate-wise protected areas, as well as the ecological impacts of climate change on San Diego County’s ecosystems.
The public health reports include impacts of climate change on emergency response infrastructure, as well as the analysis behind the Cal-Heat tool to assist public health officials in communicating heat wave risk.
- Assessing Vulnerability and Improving Resilience of Critical Emergency Management Infrastructure in California in a Changing Climate
- Drought Impacts and Drought Vulnerability in Rural Communities of California's San Joaquin Valley
- Examining the Association Between Temperature and Emergency Room Visits from Mental Health-Related Outcomes in California
- Investigating optimal urban heat mitigation strategies for vulnerable populations in a changing climate
- Preparing Public Health Officials for Climate Change: A Decision Support Tool
The two reports on governance are focused on local government challenges to implementing adaptation strategies.
- Adapting air quality management for a changing climate: Survey of local districts in California
- Adaptation Finance Challenges: Characteristic Patterns Facing California Local Governments and Ways to Overcome Them
- Overcoming Organizational Barriers to Implementing Local Government Adaptation Strategies
California’s Fourth Climate Change assessment was supported by the California Energy Commission, the California Natural Resources Agency, and the Governor’s Office of Planning & Research. For the California Energy Commission, this research serves as the foundation for the state’s long-term energy planning.