I’ve heard people suggest we should genetically engineer some kind of algae to get rid of CO2. Without CO2 the earth would be as dead as the moon. It was required for life long before oxygen production began. With more CO2 there is more plant life, and more animal life as a result. During the age of dinosaurs, CO2 rose to 5 or 6 times the levels of today. Jungles covered the earth and insects grew to human size. About 2 billion years ago CO2 became dangerously low and all life went nearly extinct, except for a meager 1% which held on by a thread. What therefore is the greater danger?
“… insects grew to human size…”
Huh?