I'm an environmentalist, and I agreed with a recommendation for the 2 stroke engine thing... but when I saw someone say 'quit smoking', it made me realize how small fries I am.
People are cooking over coal/wood around the world, that is far far far worse than everything I've read(and that doesnt include industrial pollution). (Although 2 stroke engines and their byproducts are cancer causing, so... that is still valid)