Woods Hole Oceanographic Institution
Woods Hole Oceanography Institute: Ice Ages: Glaciers Advance and Retreat
Why have we had ice ages in the past? This resource explores the reasons why the earth's climate has repeatedly changed to create ice ages. A quiz is available to check your understanding.
PBS
Pbs Learning Media: Climate Change
This video segment adapted from NOVA explains the difference between weather and climate and features groundbreaking analysis revealing that Earth's climate has changed much faster than previously believed. [5:48]