inBOIL

If you buy me a new bicycle, I'll promise to drive less

But more on topic, I think carbon offsets are useful for encouraging companies to reduce pollution to levels below what they are allowed, although this may be better accomplished with a tax on pollution amounts. To be useful, though, would require careful monitoring, as well as adjustment to account for new technologies and products being manufactured. This leads quite easily to a regulatory mess, and I question whether this is the most efficient use of taxes to reduce pollution.

__________________
And you believe Bush and the liberals and divorced parents and gays and blacks and the Christian right and fossil fuels and Xbox are all to blame, meanwhile you yourselves create an ad where your kid hits you in the head with a baseball and you don't understand the message that the problem is you.