Sorry, but that is clearly wrong.
For example, there was no Northwest Passage through the Artic Ocean, from Europe to Asia, until 1997, when the Artic ice cap shrank about half its normal size in the summer.
That Northwest Passage had not existed for over 100,000 years before that.
And it was not just an extreme of a normal climate cycle, because the normal warming cycle was about 5,000 years ago, and it is supposed to be cooling off right now.
(There was a convoluted Northwest Passage by hugging the coastal river basins before, but that took 3 years to traverse.)
If you want another example, look at the history of the glaciers that used to be on top of Mt. Kilimanjaro.
The ice layers were over 100,000 years old, and now are all gone.
Nor is there any confusion about the science.
While there are stronger greenhouse gases then CO2, whether solar energy is retained or broadcast out of the earth's atmosphere is determined by the upper atmosphere fringe to space.
And it is only there that is matters.
And there is no water vapor there because it is too cold.
So it is only CO2 that turns radiant infrared photons into vibratory heat that can not conduct away into the vacuum of space.