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Millions of people around the world are turning off their lights for an hour every March to show their steadfast commitment to protecting nature. Countries in the Adria region have taken part since 2009.

Change Climate Change

Earth Hour started in Sydney in 2007 as a citizen action to protest against climate change and as a call for urgent action. For one hour on the last Saturday of March, millions across the globe turn off their lights to express their symbolic act of support for planet Earth.

Today, Earth Hour has grown at a huge pace to become the world’s largest grassroots environmental initiative. Together on all seven continents we speak up for wildlife and forests, rivers and oceans. And we rally around crucial actions needed to curb climate change and protect all life as we know it. 

In the Guinness Book of World Records the movement is listed as the world's largest voluntary action and each year the results keep getting even better.

Countries in our region joined the Earth Hour movement in 2009. Zagreb, Croatia was the first city, followed by Belgrade, Serbia and Podgorica, Montenegro in 2010. Ever since, WWF and partners have been organizing Earth Hour in more than 150 cities.

Give your voice for our planet

Our planet is under threat. Plastic pollution, air pollution, climate change, deforestation and other harmful human activities are destroying our natural world. This is a direct threat to our future.

Nature is vital for our health, our livelihoods and our well-being. We’re the first generation to know we are destroying our planet. And we could be the last that can do anything about it. We need a new deal for nature and people.

This Earth Hour, GIVE YOUR VOICE for our planet!


Please join us next March for Earth Hour 2021. Share our campaigns, help us raise awareness on critical issues such as climate change or biodiversity loss. Support our actions.


People love being part of such an important global volunteer action.

© A. Brasevic / WWF Adria

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