the digging, mounding,moving or preparation of the earth in heavy construction.

Chocolate is not "bad for the Earth". Some practices in the growing, harvesting, preparation and transportation of chocolate may be, but chocolate itself is not.

Steel does not come out of the ground. It is the Iron Ore which is a Major Raw Material in Steel Preparation Process that is mined out of the earth. The mining of iron ore from the earth is a process in itself.

There are multiple colleges in the US that offer earth science degrees. University of Northern Iowa is just one of them. Northern Illinois University also has a great earth science program.