Overall, the atmosphere may cool. And then there were the humans. We have factories and cars going all the time. Each of these machines is tossing small particles and molecules into the atmosphere and changing the way the Earth works. We make huge amounts of Carbon Dioxide.
People also use aerosol cans which send out a compound which breaks down ozone in the atmosphere.
You are probably in a Western country right now, did you know that in China most of their people that live in the country burn coal. They even burn it in the cities. There are all sorts of compounds created when you burn coal, not to mention black soot that goes into the air and all over the buildings. Even though people protest here about the pollution, when you compare it to places like Mexico and China, the U.S. is a very clean country for all the industry and cars we have here. Andrew Rader Studios, All rights reserved.