Give an hour for Earth
Make an impact by doing something – anything – positive for our planet. Whether you’re into food, fitness, the arts, or the outdoors, anyone, anywhere can Give an hour to care for our planet.
Uniting for people and our planet
Since our beginnings in 2007, Earth Hour has been known for the symbolic “lights off” in support of our planet. Over the years, we've stepped things up, breathed new life into our movement and mission to create the Biggest Hour for Earth.
In 2026, we’ll mark our 20th anniversary, celebrating two decades of collective action and storytelling from communities around the world.
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.
