This is a very bad idea. Photosynthesis and sea life suck CO2 out of the atmosphere very fast, which is why CO2 isn't as high as people used to forecast it wou

This is a very bad idea. Photosynthesis and sea life suck CO2 out of the atmosphere very fast, which is why CO2 isn't as high as people used to forecast it would be. Moreover, each glacial period ends with CO2 levels lower than at the end of the preceding one. The last one ended with CO2 levels not too far from starvation for photosynthesis. At the current rate of CO2 depletion we were headed for mass extinctions in just a few more glacial periods. Bringing CO2 up above 400ppm at the end of the current interglacial will extend life on Earth by a lot, possibly millions of years.