During the past 50 years oceans have become "one-third of a pH unit more acid" according to Australia's ARC Centre of Excellence for Coral Reef Studies, (CoECRS).

CNN: All About: Coral Reefs

When Dr. Hermietta Edenburg(ph) walked into the pediatric unit of the Doctors Without Borders hospital in Dubea on a recent Tuesday morning, the nurse handed her a small bundle wrapped in cloth.

NPR: Congo Violence Creates Medical Crisis