Earth Hour: A story of how the light switch sparked a global movement for change

The International Year of the Light celebrates the role of light and light-based technology in sustainable development.

International Year of Light Blog

The International Year of the Light celebrates the role of light and light-based technology in sustainable development. Strange then that we should be writing about switching off the lights on this blog but the truth is that with Earth Hour, the lights, and the light switch, are a symbol of people’s commitment to a sustainable future.

WWF’s Earth Hour was started in Sydney in 2007 as an hour where the city’s 2.2 million inhabitants came together to show the then government that climate change and our planet’s future was an issue they cared about. In a stunning visual call-out the entire city went dark in one instant and the world’s first ever Earth Hour put the spotlight on an environmental challenge that constitutes one of the biggest threats to a sustainable future – climate change. Today, the event has evolved into the world’s largest grassroots movement for the environment inspiring…

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