Fine we should listen just to the bio boys...? They want to kill babies en masse, some of them! They make Hawking look peaceful and sane.
"Ehrlich holds that increasing populations and affluence are putting more and more pressure on the global environment in many different fields, from loss of
biodiversity,
overfishing,
global warming, to
urbanization, chemical pollution and competition for raw materials.
[34] He maintains that in light of growing global incomes, reducing consumption and
human population is critical to protecting the environment and maintaining living standards, and that current rates of growth are still too high for a sustainable future."
" On the first
Earth Day in 1970, he warned that "
n ten years all important animal life in the sea will be extinct. Large areas of coastline will have to be evacuated because of the stench of dead fish."[5][25] In a 1971 speech, he predicted that: "By the year 2000 the United Kingdom will be simply a small group of impoverished islands, inhabited by some 70 million hungry people." "If I were a gambler," Professor Ehrlich concluded before boarding his plane, " I would take even money that England will not exist in the year 2000."
https://en.wikipedia.org/wiki/Paul_R._Ehrlich#Ehrlich.27s_response_to_critics