Environmentalists Are Dead Wrong Apr 26, 2017 18:19:16 GMT 12 Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by RKC on Apr 26, 2017 18:19:16 GMT 12 G'day,Environmentalists Are Dead Wrong”Scientist Harrison Brown published a chart in Scientific American that year estimating that mankind would run out of copper shortly after 2000. Lead, zinc, tin, gold and silver were to disappear before 1990.www.lewrockwell.com/2017/04/walter-e-williams/environmentalists-dead-wrong/Regards,Rob (RKC)