This is a PBS special, http://www.swimfortheriver.com/. I saw it the other night and it hit pretty close to home. I grew up in Albany, NY, went to college in New York City, and nearly all of my family still lives in Albany. I grew up riding my bike and boating in and along the Hudson. [At that time you would never get in the water, or eat anything from the water.] We, my family, used to go to the Adirondack’s and swim, hike, bike, camp, and anything else you could imagine. Many of the lakes in the Adirondack’s feed the Hudson and at that time there were a number of dead lakes, lakes where acid rain had literally killed everything in the lake.
This documentary and my family’s current experiences prove that conservation and habitat restoration work. A number of the lakes have come back, with help of course, and the Hudson is starting to become an ecosystem again. If you watch the documentary, you will see one of the most disturbing scenes in American society as well, but it does not overshadow the amazing change that has occurred.