I am poking at it! I don't know how much will be implementable for some people. For me it's not so much the idea of one individual's contribution to global warming via a/c as it is just the idea of being that dependent on one deeply inefficient and unsustainable technology - if energy costs go up enough to actually cover the price of sustainability, or we end up in a country with rolling brownouts routinely (neither of which are as unlikely as a lot of Americans think) we'll all wish we'd planned better to minimize a/c dependence.