If you follows all the rules, and sends a email to the mans in Germany, then he will plants a tree to breaths-in the carbon that your blog breaths-out.
I didn't even know my blog was breathing!
So here is the rules:
1. Write a blog post about the initiative + insert your favourite button
2. E-mail the link to your post to CO2firstname.lastname@example.org
3. We plant a tree for your blog in Plumas’!
Note: We plant a tree for each domain. Please copy the html-code and paste it in your blog. Make sure the carbon-neutral button works, the html-code must not be changed. Use the carbon-neutral-white button for a white background or the carbon-neutral-transparent button for different colored backgrounds. If you need help, please contact CO2email@example.com. We are looking forward to planting your tree!