text: Again, just as with talk about rainforest loss, the numbers concerning species loss are equally alarming, and depending on where you look, equally diverse. But generally, the numbers can be traced to two sources: "Dr. Norman Myers, a British ecologist who in 1979 predicted the loss of one million species by the year 2000 ; and Dr. Edward O. Wilson, a Harvard biologist who variously claims that 4,000, 30,000, or 50,000 species are lost each year." (Eco-Sanity, p.86).