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Meet the Challengers

Discover the U.S. cities participating in the Earth Hour City Challenge so far! Click on the pins below to learn how each city is tackling climate change.

Don't see your city listed? Urge your mayor to participate here. Or if you are a city representative, visit Join the Challenge.

U.S. Earth Hour Capital Announced

In recognition of San Francisco’s comprehensive efforts to promote renewable energy and prepare its residents for extreme weather and other consequences of climate change, an international jury has named the city U.S. Earth Hour Capital for 2013. As part of this honor, the city will receive World Wildlife Fund’s Earth Hour Climate Leaders Award and $30,000 to support its work engaging San Franciscans around climate impacts on the city’s future. Chicago and Cleveland were also awarded a Climate Leaders Award; all three of the cities will organize an event to further engage their residents on climate change. Learn more

Sustainability Runs Deep in Richmond

To say that the heart of Richmond is the James River is not mere metaphor. The waterway provides lifeblood for economic development through adventure tourism and the many festivals held on its banks. Today Richmond is one of 29 participating cities in WWF's Earth Hour City Challenge. But in the 1970s and 1980s the situation was far different. Pollution from tobacco plantations and chemicals plants had sullied the river to the point where fishing in the James River was banned in 1975.

© City of Richmond

Full List of Participating U.S. Cities

Antioch, CA

Asheville, NC

Atlanta, GA

Beaverton, OR

Broward County, FL

Burlington, VT

Cincinnati, OH

Charleston, SC

Chicago, IL

Chula Vista, CA

Cleveland, OH

Evanston, IL

Flagstaff, AZ

Grand Rapids, MI

Hamilton, NJ

Hawthorne, CA

Knoxville, TN

Las Vegas, NV

Martinez, CA

Miami, FL

Nashville, TN

North Little Rock, AR

Oakland, CA

Richmond, VA

San Francisco, CA

Seattle, WA

Southfield, MI

Tacoma, WA

Tucson, AZ

How You Can Help

Forward-thinking cities are addressing these escalating threats through implementation of practical measures that make their communities safer and healthier. This includes improving air quality, protecting limited water supplies, reducing urban flooding and empowering citizens to better protect themselves and their homes. With your help your community can take action too.

City Officials

The Earth Hour City Challenge offers a platform and benefits package that will empower and reward participating cities that take steps to reduce their carbon footprint and prepare for climate-related severe weather.

Individuals

More and more, communities are facing problems like water scarcity, floods and extreme heat. See how your city is at risk from extreme weather, and then tell your mayor to prepare!

  • Take action: Tell your city to join the Challenge


  • Discover how climate change is affecting your state


  • See how cities are preparing
  • Spread the word