Earth Hour 2018: Why the planet needs our help

Earth Hour started as a symbolic “lights out” event in Australia just over a decade ago and is now the world’s largest grassroots movement for our planet and the environment. Some 187 countries and territories took part last year, and more than 3,100 landmarks went dark. This year, World Scouting has joined forces with WWF to help mobilise young people in support of this planet we call home.