For 600 Million Years, before the most recent 800 Thousand Years, Temperature is bounded on the low point when Oceans freeze. Temperature is bounded on the upper point when water evaporates and creates more and more water vapor and clouds as needed to stop temperature from getting hotter. CO2, even at 6000 parts per million or down to 200 or 300 parts per million, did not appear to make any difference to Temperature. CO2 did appear to follow temperature when it could but it never appeared to lead Temperature.
