Question

What are two ways to reduce air pollution and slow climate change?

Answer 1

The priimary cause of  air pollutantion are the processes that emits CO2, SO2, and others. To reduce air pollution lessen these emissions by using gas capture techniques like the electrostatic precipitator and others. We can also encourage the use of public vehicles to lessen the number of driven vehicles. 

Answer 2

If you can connect air pollution leads to global warming and thus climate change.
So in order to decrease pollution levels
1. Lessen the usage of vehicles (motorised)
2. Industrial waste should be treated properly before releasing into the atmosphere