California Prepares for Increased Wildfire Risk to Air Quality From
Climate Change

*© epa.gov/arc-x/california-prepares-increased-wildfire-risk-air-quality-climate-change

Wildfires, a longstanding and frequent threat to California,
are expected to increase in intensity and frequency due to
climate change. While wildfires are obviously a significant
threat to property and public safety, they can also
significantly affect air quality by increasing the amount of
particulates in the air. Because of this, California included
wildfire threat within its 2009 Climate Adaptation
Strategy and seeks to reduce and adapt to the increasing
future threat to air quality from wildfires. Consistent with
adaptation planning practices, California conducted a
vulnerability assessment to better understand the projected
magnitude of impact climate change could have on wildfire
activity including concerns such as the effectiveness of
California's climate sinks (i.e., carbon stored in vegetation)
and how projected climate changes are expected to impact
them. While there are many factors that may influence the
past trends, climate change is expected to significantly
impact California's forests and contribute to an increase of wildfires in the projected future. California's 2010 Rangeland
Assessment's chapter on climate change notes that the fire season has been starting sooner and ending later, and the severity
of wildfire acreage burned has been increasing in recent years. The Rangeland Assessment also includes reference to
literature (i.e., studies) that suggests the increased number of wildfires will lead to a corresponding increase in the number of
'bad' air days from particulate matter. California is anticipating how climate change will affect wildfires and associated public
health concerns and adapting by protecting forests, increasing public awareness of proper land management strategies, and
promoting efforts to better maintain air quality.

How Did They Do It?	Applicable EPA Tools

Assessed public health risk from increased wildfires due to	Review the 2014 Quadrennial Fire Review (PDF)

changing climate conditions	(96 pp, 4.4 MB) to evaluate the strategic outlook of

wildland fire management over the next 10-20
years and use EPA's Wildfire Smoke Guide for
Public Health Officials (PDF) (27 pp, 379 K) to
identify potential impacts to public health.





0

•V"

1/2


-------
How Did They Do It?

Applicable EPA Tools

Identified adaptation strategies and created local resources

•	Identified resiliency strategies in the California Statewide
Adaptation Strategy (PDF) (15 pp, 424 K) including fire
suppression efforts, and near and long term adaptation
strategies to develop institutional capacity to monitor and
mitigate the increased threat and risk of wildfires. These efforts
are attempting to reduce wildfires and the associated impacts to
air quality and human health.

•	Developed an Adaptation Planning Guide Exit to help local
communities undergo a vulnerability assessment and create
adaptation plans.

•	Promoted public awareness for the need to reduce the
frequency and intensity of wildfires and provided grant funds
Exit to local organizations to fund projects related to fuel
(vegetation) hazard reduction, fire prevention education and
training, and fire prevention planning.

•	Provided guidelines on "Cal-Adapt" Exit on vulnerabilities and
how communities can identify adaptation strategies and tools to
deal with increased wildfire risk.

•	Created a public website with an interactive projection of
wildfire risk for both regions and individuals to gauge future
wildfire risk around the state under two different emissions
scenarios.

Similar Cases and More Information

Wildfires pose extreme threats to public safety, however this case focuses on EPA's role, in this case, protecting air quality. For
more information on wildfires, including the impact to human health and safety, please visit the National Climate Assessment or
U.S. Resiliency Toolkit. For another example on how a community is adapting to air quality concerns see the Salt Lake City
case.

•	National Climate Assessment

•	U.S. Resiliency Toolkit

•	Salt Lake City

2/2

Use the Forest Service's LANDFIRE (Landscape
Fire and Resource Management Planning Tools)
to map vegetation, fire, and fuel characteristics at
a landscape scale to support resource
management initiatives.

* (This is a non-EPA resource from the U.S. Forest
Service.)


-------