Historical Effect of CO₂

If you study the history of the climate of earth over the last 400,000 years, you can see that the CO₂ levels went up and down, driving temperature up and down and driving the sea levels up and down by 100 metres (109.36 yards). Today the CO₂ levels are twice as high as they have ever been before. It is naïve not to expect a concomitant effect. Imagine defrosting an old fridge. You open the door, but it still takes perhaps a day for the ice to melt. You cannot conclude the ice won’t melt just because it takes a while to react to the warmer conditions. Also the oceans take up the excess heat in the atmosphere, delaying the warming effects. It is just wishful thinking to trust this time the earth will react in a different way for some unknown reason.

~ Roedy (1948-02-04 age:69)