The same way civilizations before us did. They explored so now we have interbred and humans now share ideas religions and culture from all over the world. Generations before us fought for civil, black and equal rights so now we are closer to having them today. If we end up using resources the same way we have been for the last 100 years our trees and air will die and become polluted. That could damage future s\civilizations but will do little to us right now.