It will probably come as a shock to climate alarmists to finally understand that CO2 levels are already dangerously low for survival of humanity.
If climate alarmists succeed in reducing atmospheric CO2 much below 200ppm, which it has not done in the history of life in Earth, plant life can no longer exist, and food disappears. But that will not matter, because plants make our Oxygen. We will suffocate first.
Ever wonder why the Earth was once covered with massive amounts of huge plants in the Paleolithic, but today the Earth has only a tiny fraction of that level of greenery? Let that sink in.