Regional Reports

Local and regional governments need information to support action in their communities. To address this need, the Fourth Assessment includes reports for nine regions of the state. These summary reports were included for the first time as part of the State’s assessment process in part because the vast majority of adaptation planning and implementation will happen at local and regional scales. Each of these reports provides a summary of relevant climate impacts and adaptation solutions for a region of the state.

Report Map

View regional map and download report pdfs.

Select the region to download the report.

Regional Reports by Name

En Español

Central Coast

The Central Coast Summary Report includes climate science, impacts, and adaptation information for Santa Cruz, San Benito, Monterey, San Luis Obispo, and Santa Barbara Counties.

File Size: PDF 19.8 mb |
Report #: SUM-CCCA4-2018-006 |
Published: September 28, 2018
Inland Deserts

The Inland Deserts Summary Report includes climate science, impacts, and adaptation information for Imperial and the eastern parts of San Bernardino and Riverside Counties.

File Size: PDF 5.6 mb |
Report #: SUM-CCCA4-2018-008 |
Published: August 27, 2018
Los Angeles

The Los Angeles Summary Report includes climate science, impacts, and adaptation information for Ventura, Los Angeles, Orange, and the western parts of San Bernardino and Riverside Counties.

File Size: PDF 9.8 mb |
Report #: CCCA4-SUM-2018-007 |
Published: September 28, 2018
North Coast

The North Coast Summary Report includes climate science, impacts, and adaptation information for Lake, Mendocino, Humboldt, Trinity, Siskiyou, and Del Norte Counties.

File Size: PDF 4.6 mb |
Report #: SUM-CCCA4-2018-001 |
Published: August 27, 2018
Sacramento Valley

The Sacramento Summary Report includes climate science, impacts, and adaptation information for Sacramento, Yolo, Sutter, Yuba, Colusa, Glenn, Butte, Tehama, Shasta, the eastern half of Solano, and western part of Placer Counties.

File Size: PDF 7.2 mb |
Report #: SUM-CCCA4-2018-002 |
Published: August 27, 2018
San Diego

The San Diego Summary Report includes climate science, impacts, and adaptation information for San Diego County.

File Size: PDF 14.7 mb |
Report #: SUM-CCCA4-2018-009 |
Updated: March 21, 2019
San Francisco Bay Area

The San Francisco Bay Area Summary Report includes climate science, impacts, and adaptation information for San Francisco, Marin, Contra Costa, Alameda, the western half of Solano, Santa Clara, San Mateo, Sonoma, and Napa Counties.

File Size: PDF 17.9 mb |
Report #: SUM-CCCA4-2018-005 |
Published: January 16, 2019
San Joaquin Valley

The San Joaquin Valley Summary Report includes climate science, impacts, and adaptation information for San Joaquin, Stanislaus, Merced, Kings, and the western parts of Madera, Fresno, Tulare, and Kern Counties.

File Size: PDF 5.0 mb |
Report #: SUM-CCCA4-2018-003 |
Published: Janurary 6, 2022
Sierra Nevada

The Sierra Nevada Summary Report includes climate science, impacts, and adaptation information for Modoc, Lassen, Plumas, Sierra, Nevada, Placer, El Dorado, Amador, Calaveras, Alpine, Mono, Tuolumne, Mariposa, Inyo, and the eastern parts of Madera, Fresno, Tulare, and Kern Counties.

File Size: PDF 8.4 mb |
Report #: SUM-CCCA4-2018-004 |
Published: August 27, 2018

Informes Regionales en Español

Sacramento

Este reporte resume impactos y riesgos actuales y futuros del cambio climático en la región del valle de Sacramento de California. La región se compone de totalidad o parte de los Condados de Sacramento, Yolo, Sutter, Yuba, Colusa, Glenn, Butte, Tehama, Shasta, Solano, y Placer.

Tamaño de portafolio: PDF 7.2 mb |
Informe #: SUM-CCCA4-2018-002 |
Publicado: 31 de Enero de 2019
San Diego

Este reporte resume impactos y riesgos actuales y futuros del cambio climático en la región de San Diego de California.

Tamaño de Archivo: PDF 14.3 mb |
Informe #: SUM-CCCA4-2018-009 |
Publicado: 31 de Enero de 2019
San Francisco

Este reporte resume impactos y riesgos actuales y futuros del cambio climático en la region del Área de la Bahía de San Francisco de California. La región se compone de totalidad o parte de los Condados de San Francisco, Marin, Contra Costa, Alameda, Solano, Santa Clara, San Mateo, Sonoma, y Napa.

Tamaño de Archivo: PDF 17.9 mb |
Informe #: SUM-CCCA4-2018-005 |
Publicado: 31 de Enero de 2019
Valle de San Joaquin

Este informe resume los impactos del cambio climático en las comunidades, la agricultura, las infraestructuras y los ecosistemas del Valle de San Joaquin, y recomienda estrategias de mitigación y adaptación. El Valle de San Joaquín incluye los condados de San Joaquín, Stanislaus, Merced, Madera, Fresno, Kings, Tulare y Kern.

Tamaño de Archivo: PDF 6.3 mb |
Informe #: SUM-CCCA4-2018-003 |
Publicado: 6 de Enero de 2022
Sierra

Este reporte resume impactos y riesgos actuales y futuros del cambio climático en la región de la Sierra Nevada de California. La región se compone de totalidad o parte de los Condados de Modoc, Lassen, Plumas, Sierra, Nevada, Placer, El Dorado, Amador, Calaveras, Alpine, Mono, Tuolumne, Inyo, Madera, Fresno, Tulare, y Kern.

Tamaño de Archivo: PDF 8.4 mb |
Informe #: SUM-CCCA4-2018-004 |
Publicado: 31 de Enero de 2019