re: #660 ArchangelMichael

The CO₂ is plant food crap is totally asinine. As if there is no such thing as too much.

Plants need water too. Give them too much, they die.

Humans need “food” as well. If we eat too much we sick, fat, maybe die.

And too much oxygen will kill us.

But a CO2 concentration of 1000 parts per million, or 0.1%, would not kill off terrestrial plant life. And current CO2 levels are measured at 387 parts per million, little more than a third of that.

The extinction of animal or plant life is not a current CO2 concern.