I don't have the deep science background (and math!) to determine if this is a crazy idea or feasible. Tossing this out for discussion and input from the forum:
Could we combine existing technologies and create systems to harness radiative cooling during polar night to release energy into outer space to buy us time to reach a carbon neutral society, and then to start removing carbon from the atmosphere?
In my mind we use wave action or currents to pump water into the atmosphere, atomizing it so that it freezes in the polar night and the energy released is then radiated into space. This would create "ice islands" which would contain salt, but would grow thicker during the polar night. There are probably some issues with scale / size of the equipment, so there would likely be hundreds, or thousands, of these deployed at both ends of the world.
Obviously, there are a lot of questions! Some which come to mind:
1. Would this work in the harsh environment?
2. What possible downsides could there be?
3. Could we release enough energy this way to create a measurable difference?
4. Others?