Like many concerned Americans, I'm susceptible to the Prius Fallacy: a belief that switching to an ostensibly more benignform of consumption turns consumption itself into a boon for the environment.
Fortunately it seems to have mutated into a more benignform and though it swiftly spread around the globe, this time it did not kill on anything like the same scale.
Body language was the basis for our earliest form of communication when the split-second ability to recognize if a person or situation was benign or dangerous was often a matter of life or death.