My invention uses ambient CO2, snaps off the carbons and cobbles them into graphene (mega-glorious carbon membrane 1 atom thick) and releases O2 back into the wilderness. I can even configure it to make O3 because it’s just that great (and I’ve got me a stovepipe to the stratosphere where I vent the stuff). I’m tapped into a nice geothermal vent for my power generation—It’s a totally green operation. Let’s say it’s a really big gadget, too, and everybody loves it and they’re popping up all over the globe. Eventually, atmospheric CO2 levels are actually dropping and O2 levels are rising. The eco people are getting hostile again but I’m rich now so I silence them.
Assuming nobody really knows how the global climate works, what are the effects on critters of our atmosphere becoming depleted of CO2? Of rising O2 levels?