Rising carbon levels in the atmosphere can make plants grow faster, but there’s another hidden consequence: they rob plants of the nutrients and vitamins we need to survive.

In a talk about global food security, epidemiologist Kristie Ebi explores the potentially massive health consequences of this growing nutrition crisis and explores the steps we can take to ensure all people have access to safe, healthy food.

• At the Center for Health and the Global Environment, Kristie Ebi studies and develops interventions to help at-risk populations deal with climate change.