How can nanotechnology stop global warming?

Answer 1

If there were self replicating machines that could coat earth's surface with light reflecting material, this could help reduce earth's temperature. Better still would be self replicating machines that somehow sequestered gigatons of atmospheric carbon dioxide.

About 50 million years ago there was a freshwater arctic fern known as Azolla. It grew on the surface, but when it died it sank into the cold water, where it was covered and preserved. Over hundreds of thousands of years this fern pulled billions of tons of CO2 out of the atmosphere, causing earth to cool, and ultimately resulting in a long series of ice ages. One could view Azolla as Nanotechnology--a self replicating machine. But its growth rate would probably be too slow to be of much service to us.

Answer 2

Nanotechnology can potentially help address global warming by creating more efficient solar panels, developing better energy storage solutions, and designing materials to capture and store carbon dioxide. Additionally, nanotechnology can be used in energy-intensive industries to improve efficiency and reduce greenhouse gas emissions.