carbon dioxide already limited by nature

CO2 capped at 0.00002% In the Jurassic photosynthesis was less evolved than today. It left four parts per million carbon dioxide in the air. There was 85% more life on earth. Sea levels were 60 metres lower. The limit to life was a small amount of carbon dioxide in the air. Fast forward to 1980. And photosynthesis number just two PPM carbon dioxide in the air. The bulk of the carbon being tied up in the fossil fuels! But I don't carbon representing the extra life that died in the pre-historic mass extinctions. As mankind burns the fossil fuels, the extra carbon dioxide was metabolised by plants within 5 minutes. So burning the fossil fuels increased plant and animal life on earth. But the carbon dioxide never made it to the stratosphere. Where our weather is made. The natural climate has 28 year periods of warming cooling. The Chernobyl accident happened during a period of natural global warming. For reasons bes...