03/22/21• BIG CHEMICAL › VIEWS Plummeting Sperm Counts, Shrinking Penises: Toxic Chemicals Threaten Humanity In her new book, “Countdown,” environmental and reproductive epidemiologist Shanna Swan predicts sperm counts could reach zero by 2045 thanks to hormone-disrupting chemicals that are “everywhere.”By Erin Brockovich22 Link copied The end of humankind? It may be coming sooner than we think, thanks …