Earth Hour is all about sending a message that even small acts can make a difference - switching off a light might not seem like a big deal, but if everyone in a school, town, city or country turns off their power, people take notice! This Saturday, 28th March, wherever you are at 8.30pm, turn off the lights and do something without using electricity. You could play a board game, listen to a friend play some guitar, go for a walk or just watch the stars! Your light switch is your vote for planet earth – send a message to our government and politicians around the world that you care about climate change and you want them to take action against greenhouse gas emissions.