That's All Folks?Although some credit the environmental movement of the 1970s, with its profound impact on childrens television programs and movies, for paving the way for later eco films, the history of environmental expression in animated film reaches much further back in American history, as Thats All Folks? makes clear. Countering the view that the contemporary environmental movementand the cartoons it influencedcame to life in the 1960s, Robin L. Murray and