Earth Hour 2010 is Tonight at 8:30pm!

Now in its fourth year, Earth Hour, which is organized by the World Wide Fund for Nature, asks everyone to take a stand against climate change and turn off their lights for a solid hour beginning at 8:30pm local time. Last year, hundreds of millions participated in over 80 countries, and this year, nearly one billion are expected to show a little love. For additional information, check out the official Earth Hour website.