The worst case scenarios for c02 emissions are so full of unknown and unknowable variables they are barely more useful than SETI work. They're also over a timef

The worst case scenarios for c02 emissions are so full of unknown and unknowable variables they are barely more useful than SETI work. They're also over a timeframe beyond everyone here's lifetime. The models have a lot of assumptions in them, and cover variations of the order of 3-400%. It's just not useful information, apart from selling magazines and newspapers. You cannot do anything with vague forecasts from c02 research, apart from scare people. Conversely, we know exactly what happens when you breathe too many particulates. We know how to fix the problem. You don't even need to redistribute income globally to do anything about it. Cigarette smoke is literally a drop in the ocean from large scale emissions like diesel engines, coal stacks, car exhausts and the like. Clean air and water is priority no 1 for all humans. You don't need food until the first two are taken care of.