Richard Tol's article on radical greens is a must-read:
There are now elements in the environmental movement who are so worried about the state of the planet that they have lost all sense of proportion. This is alarming for those at the receiving end of their mindless wrath. It does not help to protect the environment either. Just like Boko Haram does not endear anyone to Muslims, green radicals taint all environmentalists. But whereas Islamic leaders immediately distance themselves from any new outrage, environmental leaders pretend nothing happened.
This really deserves a wider audience.