Check out 350.brighterplanet.com - just place their badge on your blog (see above), let Brighter Planet know, and they’ll offset 350 pounds of carbon in your name. Why 350 pounds? According to the website, 350 is the parts per million of Co2 in the atmosphere that we must aim for if we want to keep the planet relatively safe. Brighter Planet’s 350 Challenge: Get 350 bloggers to post the badge, and each receives a 350 carbon offset in their name. It’s been hugely successful with more than 1,600 badging-up.
The program was inspired by Bill McKibben’s awareness campaign that you can learn about at 350.org. You can also hear his podcast on Brighter Planet’s blog: http://blog.brighterplanet.com/2008/05/