I recently had a discussion with my students. This is the gist of that conversation. First, the new anti-environmentalist hysteria sounds an awful lot like my five year old son did when I told him he wasn't allowed to destroy his toys and that he WAS expected to clean up his room.
Environmental regulation is a relatively simple issue.
If you make a mess, clean it up. If the resource you want to mess with cannot be replaced, leave it alone. The issue of takings is a pipe-dream that will cost American taxpayers billions.