Green

A dream I just had; haven't had one in a long time! A post-apocalyptic sci-fi western:

In the not-so-distant future, human society all over the planet has collapsed into a dystopian anarchy; the world economy has imploded, all the planet's fossil fuel resources are exhausted, and all the humans have escaped into the wilderness from the polluted, uninhabitable cities. Palmer considers himself the roughest, toughest frontiersman, believing he has what it takes to save mankind from extinction. He hears a rumor of a scientist hidden deep in the woods who has the solution for all mankind's problems and he wants to be involved. After fighting his way through countless obstacles and proving himself to the scientist's followers, he discovers the awful truth: the scientist is the leader of a cult, who's followers, including a close friend of Palmer's, volunteer for the scientist's genetic experiments. His goal is to turn the human race into trees that never depend on fossil fuels or emit carbon dioxide. Palmer argues there's a reason humans evolved as animals and trees evolved as plants; nature finds its own balance. But the mad scientist will have none of it. Now Palmer has to not only foil the mad scientist's plans, but escape with his life and humanity!