Have a tree planted for free to neutralize the carbon from your blog or website.
Just send an e-mail to: CO2email@example.com with your blog link and they will plant a tree for you and list your blog as a participant.
You can read more about this at:
Just write a short blog post about the program “My blog is carbon neutral” and include one of the buttons on your site (ideally in the sidebar). Send the link to your blog to CO2firstname.lastname@example.org and we plant a tree for you, neutralizing the carbon dioxide emissions of your blog. The trees will be planted in the spring of 2010 by the Arbor Day Foundation.