Back in the 70’s (with global cooling all the rage) some “experts” proposed covering the ice sheet with soot to darken it to absorb the heat. It’s worth a try! What could go wrong!!??
I imagine the cooling trend will continue, and I hope that it will cycle up and get warmer again as it has in the past. What IS a bit on the scary side is that we are near (or past) that time in former cycles when a true “Ice Age” has hit in the past. And more evidence mounts that the change can be very rapid (months to years) rather than decades.
I know and the glacial period of an ice age (actually we’re in an ice age now it’s just the inter-glacial period) typically lasts about 90k years. Where I sit now had a three mile thick cap of ice on it during the last glacial period.