Give an hour for Earth doing something you love

Join us on 22nd March at 8.30pm your local time to create the Biggest Hour for Earth

Give an hour for Earth doing something you love

Join us on 22nd March at 8.30pm your local time to create the Biggest Hour for Earth

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Community members from the village of Kimokouwa work to uproot and remove ipomoea hildebrandtii (Convolvulaceae) - an invasive species. The community set aside one day a week to uproot this invasive species that has caused a decline in nutritious fodder and altered ecological systems and soil. Longido district, Arusha, Tanzania. © Greg Armfield / WWF-UK


Uniting for people and our planet

Since our beginnings, Earth Hour has been known for the symbolic “lights off” in support of our planet. But starting 2023, we've stepped things up, breathing new life into our movement and mission to create the Biggest Hour for Earth.

Our mission


Up your knowledge

The climate and nature crises are some of the greatest challenges humanity has ever faced. Learn more about what's causing them, what's at stake, and what we must do to turn things around.

Learn more

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