describe and explain the atmospheric processes that influence global climate

please could somebody point me in the right direction

I think I would examing uv absorbtion, and how it changes...that affects climate .

Also, the effect of CO2 in the atmosphere, and the result in climate changes.
The other thing over time, has been the ash content from volcanoes in the upper atmosphere, that affects climate.

Search in Google
uv absorbtion climate atmosphere
CO2 atmosphere climate
Volcano Ash climate atmosphere.