Aaron Bernstein, Associate Director of the Center for Health and the Global Environment at the Harvard School of Public Health, Instructor in Pediatrics at Harvard Medical School and a Physician at Children’s Hospital in Boston, presents a slideshow to illustrate his article, "Biological Diversity and Public Health," which he wrote for the 2014 Annual Review of Public Health. He examines the various roles biodiversity has played in human health and explains how biodiversity loss threatens our wellbeing. Watch the full slideshow here.