So, atmospheric concentrations of CO2 are now higher than they have ever been since homo sapiens have existed.Meanwhile, on Russia’s arctic coast, which is permafrost, the temperature is 29C, 84F.
That means the permafrost is melting.
Because we continue to pump green house gasses out, because every scenario includes more significant warning, I will state again: We are not going to avoid permafrost melting.
Permafrost holds vast amounts of methane. Methane is, short term, a far more potent greenhouse gas than CO2.
This will likely then lead to methane releases from arctic seas. It will lead to faster melting of glaciers and polar and antarctic ice. As oceans warm, they will expand further, leading to sea level rises.
Increased temperatures will lead to even more extreme weather events such as category 6 hurricanes.
We will see changes in weather patterns and so on.
But the key point is that we are about to hit the accelerator, and there is no actual possibility of avoiding it, which will almost certainly lead to exponential, uncontrolled increases in climate change.
We are, for all practical purposes, past the point of no return. We will lose our coastal cities, for example, the only question is when. The glaciers and snowcaps in most of the world will go away, leading to many rivers drying up.
Etc, etc…
Climate change is not a question, it is a certainty, and the question is not, “Will it be bad?” but “How bad?”
The answer is, almost certainly, “Very, very bad.”
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