Humans may be fueling global warming by breathing: new study

[Old Guy]

The atmosphere used to have hundreds if not thousands of times the CO2 as today. That was before all the coal, oil, and gas, and literal mountains of calcium carbonate was sequestered. And what term would best describe the climate back then? Lush! I've been through imminent nuclear death, global cooling, Y2K, and now global warming. I've survived repeated manufactured fear. The most efficient extraction won't free more than a small percentage of sequestered CO2. In a few hundred years the markets will find alternatives or we will freeze in the dark. In the meantime marginally higher CO2 will be sequestered in new plant growth. The world is already greening from the minuscule rise of CO2.