I'm struggling to explain the most important aspects of air pollution in a concise way. I understand CO2 is the biggest issue and long-term driver of global warming, but beyond that I'm lost. News articles about air pollution sometimes mention particle pollution, methane, sulfur dioxide, aerosols, carbon monoxide, nitrous oxide, and others, but I have no idea about their relative importance in regard to the impact on human life and earth ecosystems.
I understand from Wikipedia that carbon dioxide equivalent (CO2e) is used as a way to simplify all of the above into a single number expressing the global warming impact of a collection of air pollutants, usually computed based on the global warming impact over 100 years.
Simplifying everything down to 1 number is appealing, but seems like it also loses a lot of information. On the other hand, enumerating every single pollutant seems to just make everything confusing unless you're already an expert. What I'm imagining is a compromise where we could express air pollution in CO2e plus a couple other numbers that capture some of the most important details that CO2e doesn't address.
My question: What are the most important pieces of information that get lost by converting all air pollution into CO2e?