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Climate Change Contacts

Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Climate Change in the Pacific Southwest

At the US EPA, we approach the challenge of climate change through both mitigation and adaptation

Climate Change mitigation is about reducing the human impact on the climate system.  Mitigation includes strategies to reduce the amount of greenhouse gases entering the atmosphere, and increase the amount of greenhouse gases removed from the atmosphere. Clean Energy is a focus of much of EPA’s work on Climate Change Mitigation.  To see what EPA Region 9 is doing for Climate Change Mitigation, see our Pacific Southwest Energy Efficiency page.

Climate Change adaptation is about understanding how we are vulnerable to the changing climate and preparing our natural and human systems to be resilient in the face of change. To see how EPA is preparing its own programs for climate change, and helping its partners do the same, see our Pacific Southwest Adaptation page.

Featured Stories
Sonoma county fleet car.

US EPA Honors Sonoma County
Fleet Operations for their innovative hybrid electric and all-electric vehicle program

Sonoma County won a Clean Air Excellence Award in the Transportation Efficiency Innovations category. Their greenhouse gas emissions were reduced by over 1,815 tons over the past decade.

Learn More: EPA honors Sonoma County for protecting air quality, fighting climate change with one of nation’s largest hybrid vehicle fleets

Climate Change News


An aerial view of the 88-acre He‘eia fishpond.

Reefs and Shoreline in Oahu, Maui and Hawaii Island to Get Special Attention from Federal Agencies

Three areas at risk from climate change on Oahu, Maui and Hawaii island will get special attention from EPA and other federal agencies to help protect reefs and shorelines and prepare for rising sea levels, the White House recently announced.

Learn more: DOI, EPA, NOAA announce Resilient Lands and Waters Initiative to prepare natural resources for climate change

For the first time, comprehensive greenhouse gas (GHG) data reported directly from large facilities and suppliers across the country are now easily accessible to the public through EPA's GHG Reporting Program.

Climate Change Indicators

global climate change impacts in the united states reportClimate Change Indicators in the United States Report - 2014.
EPA's 2014 report tracks climate change with an expanded and updated set of indicators.

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