As mentioned, walk and chew gum... But I also think that moving a lot of harmful activities into space would be an all-around benefit. For example, I think sp

As mentioned, walk and chew gum... But I also think that moving a lot of harmful activities into space would be an all-around benefit. For example, I think space mining will help reduce the need to mine a lot of resources on earth. Potentially the same may be true for certain manufacturing operations that are better suited to zero-gravity, and whose harmful bi-products might just be jettisoned off towards the sun instead of having to be buried in the desert or dumped off the coast of Africa. Apart from getting everything into orbit to begin with, any transportation thereafter is merely left up to gravity and dropping the final/semi-final products back to earth. Today, the amount of emissions resulting from striping, digging, transporting, refining, transporting, manufacturing, transporting, etc... is alarming.