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Adding insulation (carbon dioxide) doesn't have instantaneous heating. You seem to think 150 years is a long time -- it is not.
How does the lowered albedo of the open water cause cooling? It doesn't. Methane is bubbling out of many lakes, bogs, and permafrost, and this will likely cause much greater warming.
It took millions and millions of years for all the carbon to get stored away under the ground, and the equilibrium of our climate has depended on the greenhouse gasses to stay within the range that it has for the entire recorded history of humans -- the last 10,000 years or so. Before that, it was a lot *colder* than it ever has been during recorded history.
We have released a large portion of those millions and millions of years of accumulated carbon in a blink of an eye -- most of it within just the last 50 years. How can we think that this would *not* affect the environment?
There are no general scientific questions about global climate change and the fact that humans are causing it is well established. The only questions are details about how fast the change will happen, and how much "momentum" there is in the system.
All indications are that the rate of warming and the "momentum" are outstripping even the most recent worse case scenarios.
We have passed the equilibrium threshold level of ~350ppm. Things will get worse before they get better. We have soiled our nest, and now we have to live with the consequences.
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Why is it that this piece of science is questioned? Is it because it makes us uncomfortable, to admit that we humans have made a big mistake? That is the reason that some people question evolution. Evolution is totally settled science, and yet many people question it. Same for flat-earthers, and for those who believed that the Eaarth is the center of the solar system.
The scientific process of Global Climate Change is THE SAME as all other accepted science. If it is right on everything else, how can it be wrong on this?
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