A lot of factors determines the generation and movement of wind. However, winds tend to blow from areas of high atmospheric pressure to areas of low atmospheric pressure, and the greater the difference between the high and the low pressure areas, the stronger the wind.
These factors include Coriolis effect, trade winds, energy from the sun, differences in local temperature.
I would have to go with Sewage mostly because it smells and because it can really hurt the environment. Plants can die and it just is gross to smell. So this would definitely pollute the earth. I hope this helped! :D
