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World Wildlife FundAction Center

Earth Hour City Challenge

Thank you for your interest in Earth Hour, however, this Action Alert is now closed.

Earth Hour is much, more than a symbolic action of switching off lights for an hour; it’s a continuous movement driving real actions, big and small, that are changing the world we live in. Together we must find the energy to turn the inspiration of one hour into the actions of every hour.

We hope your commitment to go beyond Earth Hour is stronger than ever. As a next step, please encourage your city leaders to take steps to make your community safer and healthier by participating in the Earth Hour City Challenge.

Why the Earth Hour City Challenge

Cities throughout our county are on the front lines of increasingly extreme weather, from more intense heat waves and wildfires to droughts and flooding rainstorms. Dangerous weather events are become more frequent or more severe or both.

The good news is that there are practical steps that your city can take to prepare for these changes and make your community safer and healthier. Check out our interactive map to see how your city is at risk from extreme weather and what you can to help.