That's true, but doesn't change the fact that the current rise in CO2 is mostly manmade. The oceans did warm naturally maybe a degree or two over the last few centuries or so. That's enough to create a rise of 5-10 ppm in atmospheric CO2. The rest of the rise, including annual rises of 2-3 ppm are due to manmade CO2. Whether that manmade CO2 creates more warming is not reqlly in doubt, but the amount is probably small. The doomsters have to fudge the models with extra water vapor and weather pattern changes to get a lot of future warming.
Let’s not allow the unlearned (media) deny simple algebra while decrying “science deniers”. 2+2=4, therefore 4-2=2. Hard sciences are proven through the numerical triumvirate: math+algebra+calculus.
According to the recent PBS special, an increase in the atmospheric CO2 retains thermal radiation (IR energy); it “doesn’t allow the escape of heat”. While this is a scientific fact, it does not take into account any of the REFLECTIVE/DEFLECTIVE action of CO2. Incoming IR energy is deflected away from the earth in same manner AND RATE it is reflected back into the atmosphere.
CO2 is actually a MODERATOR of atmospheric temperature.
It’s math AND science.