Our Earth Hour supporters
ABOUT EARTH HOUR
Earth Hour began in 2007 in Sydney, Australia and is the largest collective environmental movement in the world
Visit our international website and check out Earth Hour across the globe
Change beyond the hour
We’re facing the biggest environmental challenge our generation has ever seen. No matter what we’re passionate about, something we care about will be affected by climate change. Sea levels are rising and oceans are becoming warmer.
Climate change poses a fundamental threat to the places, species and people’s livelihoods. It can amplify existing threats and increase biodiversity loss. Our ocean’s diversity of life is at risk from the changing climate. Oceans absorb most of the heat and about 25% of carbon dioxide generated by human. It also hosts coral reefs – the important habitats which house one-fourth of known marine species in the globe. However, thermal and acidification stress in oceans cause coral bleaching and half of the world’s coral reefs have been lost in the past 30 years.