The Earth Hour campaign, which began in Australia in 2007, has grown into a global movement. Entire streets, city skylines, and landmarks now routinely go dark to draw attention to the climate crisis.

The largest global environmental movement Earth Hour returns for its 19th edition with the Biggest Hour for Earth as it unites millions around the world in celebration of our planet Earth Hour 2025 ...

23 MARCH 2025 – At 8:30 pm local time on 22nd March, millions of people around the world came together for Earth Hour in an inspiring show of unity and commitment to our planet. As of today, nearly 3 ...