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The physics of climate change is straightforward....there is some additional energy in the climate system, and temperatures rise.
But policy makers are not fools, and they are pointedly doing nothing about mitigating climate change because policy has to be costed and measured and has to be effected over a specific period of time.....
you can't base policy on current climate models which are so poor that they cannot predict the amount of temperature rise and the timescale for the temperature rise.
In the absence of reliable predictions of how much temperature rise and over what period, which are 'actable" facts on which people will probably start to do something, climate change zealots resort to a generalized "we're all doomed" type of scenario.
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