The answer is domed cities
Earth was never meant to be a factory world, the more you find out about outer space the more you realize zero g vacuum is the only way to make anything.
Zero G totally changes the nature of any cast material. Forming the material in the vacuum of space forms the material with zero porosity and internal defects.
Ball bearings have been found for years already in different parts of the world that were manufactured in space and are perfectly spherical, without voids, inclusions or impurities.
If you want to negate man's contribution to 'climate change' which we in North America contribute less than 10% of the total amount, do what Russia and China are doing, and begin investing in factories on the moon. You will then be manufacturing machines that have thousand year life spans and never wear out - and the planet will do what it was designed to do, grow vegetables fruits and trees and animal life.