Actually, the things I want to do about my emissions are:
1) electric car. I have it, I just need to get it titled
2) more efficient internal combustion car. needs a tune up but I'm up to 31mpg highway from the last ~25mpg car.
3) geothermal heat pump. if any of the people would ever give me a quote on installing one I'd borrow the money (there are financial incentives available) and be on the way to that. I had someone come out and check out my house for it last year, and I'm still waiting for a quote.
4) photovoltaic array on the roof. I figure after the heat pump.