> why would it be a bad idea to reduce the level of pollution in the environment For the record I do believe in climate change, and think we need to deal with

> why would it be a bad idea to reduce the level of pollution in the environment For the record I do believe in climate change, and think we need to deal with it. But to answer your question, if climate change indeed _weren’t_ caused by human CO2 emissions, then why would atmospheric CO2 even count as pollution? Combating climate change isn’t some simple and easy change. It would require people to dramatically change their way of life, usually for the worse (smaller dwellings, less AC, fewer children, less meat consumption, no non-essential international travel, etc.) It wouldn’t be worth doing if atmospheric CO2 were benign.