Ready to play in the dark? This Saturday (March 29) turn out your lights for one full hour (Earth Hour!) at 8pm (your local time).  The point isn’t to save on a ton of carbon dioxide emissions (although we will, of course), but to show solidarity with millions of people in 200 cities across the globe who are turning off their lights to make a statement about climate change.

Not sure what to do in the dark for an hour? We’re sure you’ll figure it out. Just be careful with the matches.