Paul Ehrlich

“As each new perpetual-motion-machine was propounded, one of the biologists or physicists would simply point out that it violated the second law (of thermodynamics). Finally, in frustration, one of the economists blurted out, ‘Who knows what the second law of thermodynamics will be like in a hundred years?’”

 

This weeks Green Thought comes from the American biologist Paul Ehrlich tale of an occasion at the 1974 World Population Conference.