Environmental law

<p>I've been doing some research on environmental law, but I still can't figure out what they do exactly. From what I gather, some focus more on pollution and people who become contaminated from factories. There are quite a few global environmental firms that seem really interesting, but I can't imagine what these lawyers do. I keep coming back to an erin brockovich scenario, but I doubt all environmental lawyers are like this. Does anyone have experience with any environmental lawyers? I like the thought of environmental law, but it seems slightly obsolete since corporations always seem to find loopholes when it comes to the environment. If I wanted to go into making environmental policies, would I need a JD from a top school?
Any thoughts in general about the subject?</p>