Killing half the people on Earth would be the more active part of this.... even MORE “progressive”?
Although he was raised in a large family, after becoming involved in the environmental movement as a college student in the 1970s, Knight attributed most of the dangers faced by the planet to human overpopulation.
After coming to this conclusion, he joined the Zero Population Growth organization and chose to be vasectomised at age 25. He later concluded that the extinction of humanity would be the best solution to the Earth's environmental problems. He believes that this idea has also been held by some people throughout human history.