Kiss the sun goodbye. It's gone on holiday. It should be back in 12,000 years or so. 'Til then it's every man for themselves.
Many major cities will become uninhabitable death camps in the winter reduced to Donner Party style desperation. If no trucks can get in to deliver food and oil, what do you think human beings will eat? It doesn't take long for them to discover a source of food that still remains.
It's a pathetic way for our civilization to die, going out preparing for global warming before the end of the Holocene. It's our legacy and how future historians will remember us - a planet of fools whose entire existence was comic relief.