Toggle Nav

Turn off your lights

Earth Hour 2018

8:30 p.m. your local time on Saturday, March 24

WWF Mobile Action Team

Sign up for text messages for the latest conservation updates, action alerts, and ways you can help WWF reduce the most pressing threats to the diversity of life on Earth.Standard messaging rates apply.


Msg & Data Rates May Apply. Text STOP to opt out. No purchase necessary. Expect 4 msgs/mo. Terms and Conditions.

Thank you for participating in Earth Hour 2018!

The need to fight climate change has never been so urgent. After the United States announced its intent to withdraw from the Paris Agreement—the world’s first truly global plan to address climate change—more than 2,600 leaders across America’s state houses, city halls, board rooms, faith organizations, and college campuses stepped up to say they are still committed to meeting America’s climate goals.

We know that it will take action from everyone—from governments and businesses to communities and individuals—to urgently reduce the emissions that drive climate change and prepare for the inevitable impacts of a warming planet, some of which we’re already experiencing.

Together, we can tackle climate change and create a future where people and nature thrive.

2018 Earth Hour participants

Easy green tips to help the environment


2018 Participants

The following points do not represent all of the participating cities or landmarks.