How to setup cool and heated aerosols?

Question

How to setup cool and heated aerosols?

Answer 1

Well we know that coal produces particulates that cools the atmosphere. The current idea is to dump about five tons of sulfur into the stratosphere every year, a chemical reaction would be set up and the aerosols would form. This would cause the planet to remain stable or even cool. I assume heating aerosols would be released in a similar manor.