I think it's underappreciated that an increase in co2 levels is also a decrease in o2 levels. They don't have to drop much for there to be wide-ranging conseque

I think it's underappreciated that an increase in co2 levels is also a decrease in o2 levels. They don't have to drop much for there to be wide-ranging consequences. Plants can help balance that, but we're also busy deteriorating plant life.