I really am not a big fan of the "green" movement.
Okay, before you write me off as some insane freak, I should probably explain.
I am all for protecting the environment, but I really think things like biofuels and carbon credits are not the answer. They are taxing on the environment and don't make sense and our agricultural endeavors are going to be severly compromised if we devote more land to fuel than food.
Mother Jones had an amazing article on carbon credits that I highly recommend. Even if you disagree, knowing the other arguments is always smart.