And this year's theme is "A Billion Acts of Green!"
Want to pledge your own 'green' act? (Some sample pledges - swap out your light bulbs, eat more local food, get an energy audit.) Check out this link.
How about participate in a local event? Stop by here.
As of 3:40 PM Central Time today: 102, 005, 419 Acts of Green and counting.
Get in there!