Carbon Footprint

I hope your love is like fresh air, the same thing we breathe, naturally filled up everywhere without leaving any footprints. Although I have no hesitancy to accept you as my convenience, yet you make me take a big risk-- living in the atmosphere of carbon dioxide, climate change, global warming, and exhaust emission. I always imagine that you should be powered by air, instead of gas. At first, you need to be equipped with several high-pressure tanks on your car to supply the air, and then you can be clean running through the cities. Of course, all of the gas stations have to be changed into air stations so that you can refill your tanks quickly and conveniently. You really need to change from carbon footprint to green supply. If so, I think my love for you will be growing-- My dear  “Free Pollution.”