In 1970, a Smithsonian scientist warned that 80% of all animal species would vanish by 1995. A Stanford professor predicted hundreds of millions would starve in the 1970s. Another expert said we'd run out of oil and the planet would freeze 11 degrees colder. None of it happened. This episode explores the dramatic environmental predictions that gripped a generation—and why they were spectacularly wrong. Learn more at pallascenter.com