When I was a child, my father — former House Speaker Newt Gingrich — was an environmental studies professor at West Georgia College in Carrollton. In 1971, our family spent the second Earth Day picking up trash from the side of the road. We often hiked, canoed and camped in the Okefenokee Swamp. One of my earliest memories is of the “Keep America Beautiful” commercial, produced in 1970 for the…