I think civilization's best hope would be that technology manages to keep a small group of people thriving without direct sunlight(for growing food) until the n

I think civilization's best hope would be that technology manages to keep a small group of people thriving without direct sunlight(for growing food) until the negative affects of the catastrophe are reduced by natural processes or geo-engineering. If we can setup systems that can provide energy without need of a large network of resources and manufacturing to maintain(nuclear with a stockpile, geothermal, robust wind turbines), then people could live on artificially lit agriculture for generations.