Today is the day of Earth Hour, an annual event when homes and businesses across the world turn off their lights for one hour hour as a statement of their concern for, and support of, the environment. This year, at 8:30 PM local time, residences, businesses, and government offices all over our planet will power off all non-essential lights for one hour (and sometimes more!), and light our world with candles instead. It's an impressive sight to see. Check out the Earth Hour website for video on how far-reaching this event has become. Play games on their Fun Stuff page. Join the movement by turning off your lights tonight for one hour. Most of all, keep in mind that we're all together on this earth, and celebrate how beautiful it is!