The United States took first steps to keep the air clean. Cost-effective ways to reduce pollution were emphasized. The United States created the environmental protection agency. Hope this helps
It didn't leave it stronger but built it to become better than what it was, it started to build amendments for all people but it started the industrial revolution in u.s
European allies believed that after the recover of world war II their colonies would finally provide the combination of raw materials and protected markets for finished goods that would cement the colonies to Europe
