Biodiversity -- the variety of life on Earth -- is key to human survival.
But plants, animals, and microorganisms are disappearing at unprecedented rates. What impact will this have on human health? Find out in this Earth Focus special video series, produced in collaboration with Harvard's Center for Health and the Global Environment.
The consequences of biodiversity loss will be enormous for human health. Are we at the tipping point?
Nobel laureate Eric Chivian explains how advances in modern medicine may be cut short by species extinction (12 min).
James Hanken, Professor of Zoology at Harvard explains why and how the loss of amphibians affects our health (12 min).
Marine scientist Nancy Knowlton on ocean acidification and challenges facing human health (9 min).