We live in a technology-obsessed world in which powering down is a difficult thing to do — and that’s exactly why observing Earth Hour is so important. At 8:30-9:30 PM local time tonight, people around the world will shut their lights off and reflect on how we can protect and appreciate the Earth. What started seven years ago in one city in Australia has grown into a worldwide event. Last year, 152 countries participated in Earth Hour. For Earth Hour 2013, our parenting sister site, Inhabitots, has come up with a long list of ways you can celebrate Earth Hour with the whole family. Click through to see the whole list!