How To Stop Global Warming

The polar regions are warming up faster than the planet as a whole. The

Arctic ice cap is down to its second lowest level ever. This means more

heat absorbed by the planet instead of being reflected. Meanwhile, the

permafrost in the Arctic region may soon melt and release methane,

enhancing global warming. To stop the ice cap and permafrost death

spiral, we must reduce the amount of sunlight that reaches the Arctic.

I therefore propose that NASA deploy large shades in orbit (equipped

with rockets to keep them about the polar regions) about the polar

regions to block out the sun, or scatter lots of dust above the Arctic.

Another idea: Set up Ocean Thermal Energy Converters in the warm ocean

regions near the equator. The OTECs would pump cold nutrient rich water

from deep under the ocean. Algae could be grown in that water and used

to remove CO2 from the air, thus reducing global warming.