On Saturday, 28 March 8:30 p.m. local time, individuals, businesses and cities around the world will switch off their lights for one hour to focus attention on climate change. As the lights go out, Earth Hour supporters will also be contributing real climate solutions to combat the globe’s biggest environmental challenge. This is a cause I truly believe in.

This year, Earth Hour is set to be a record-breaking celebration of our planet in 172 countries and territories having confirmed their participation, including the Philippines, Maldives and Madagascar along with Brazil, the United States, Canada and China.

Since its origin as a symbolic lights off event in Sydney in 2007, WWF’s Earth Hour has grown into the world’s largest grassroots movement for the environment with huge public awareness and action on climate in more than 7,000 cities across the world.

Everyone’s talking climate change. Use hashtag #YourPower and take climate action now!