Explore the indicators that show how climate change is affecting California. Updates to plain language summaries of multiple indicators published in the 2022 Indicators of Climate Change in California report are now available.
Climate Change
Indicators of Climate Change in California
The Office of Environmental Health Hazard Assessment researches and presents indicators in periodic reports describing how California’s climate is changing and how these changes are affecting the state. Indicators are scientifically-based measurements that track trends in various aspects of climate change.
Indicators of Climate Change: Impacts on California Tribes
OEHHA recognizes the value of Tribal knowledge in reporting on, and raising awareness of, climate impacts.
Human Health Impacts of Climate Change
OEHHA focuses on human health studies relating increased temperatures to adverse health outcomes such as death and illness including hospital visits, emergency room visits, and birth defects. OEHHA has contributed to the growing body of literature linking deleterious health effects to increasing temperatures and heat waves. These studies have helped identify groups who are vulnerable to heat-related mortality and illness.
Recent Research on Climate Change in California: A bibliography
OEHHA has compiled information relevant to climate change and its impacts in an annotated bibliography with an emphasis on California. This annotated bibliography is intended as a source of current and emerging scientific information on climate change for environmental and public health agencies, the research community, non-government organizations, and the public.
2018 Report: Indicators of Climate Change in California
The third edition of the report, published in 2018, presented 36 indicators grouped into four categories: human-influenced drivers of climate change, such as greenhouse gas emissions; changes in the state’s climate; impacts of climate change on physical systems, such as oceans and snowpack; and impacts of climate change on biological systems – humans, vegetation and wildlife.
Reports, Notices, Documents
This webinar is the fourth in the series, co-convened with the California Department of Fish and Wildlife. It will address the impacts of climate change on California’s wildlife and the efforts underway to address them.
The California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) is hosting a series of webinars as part of its efforts to track and report on climate change and its impacts on California. OEHHA launched the webinar series with a symposium held on January 24, 2024.
The California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) is hosting a series of webinars as part of its efforts to track and report on climate change and its impacts on California. This webinar is the third in the series and will be co-convened with CDPH.
This webinar is the second in the series, co-convened with the California Department of Water Resources and the State Water Resources Control Board. It will address the impacts of climate change on California’s water resources, and efforts underway to address them.