Tree Rings: A Climate Time Capsule - Soumaya Belmecheri

Tracking the changing climate over hundreds and thousands of years would be an impossible task, left to guesswork and models created with short term datasets. But one way that scientists are able to extrapolate climate models over the years is to look at tree rings. Paleoclimatologist Soumaya Belmecheri explains how tree rings provide snapshots in time, sharing the secrets of floods, droughts, and carbon dioxide levels over the centuries.