Covering some 70 percent of Earth's surface, clouds play a key role in our planet's well-being. But how do they form, why are there so many types, and what clues can they give us about the weather and climate to come? Try your hand at classifying clouds and investigating the role they play in severe tropical storms.
Cloud Video Quizzes
Look inside a cloud and see how clouds form. Discover how atmospheric changes can drive the weather to change from sunshine to vicious storms. And consider how clouds will respond to global warming.
Meet the Scientists
Find out how scientists studying clouds started out; get a sense of what a typical day in their job looks like; and see what they recommend to those who want to follow in their footsteps.
Go to the library of all the NOVA Labs videos, including the Cloud Lab videos: The Making of a Cloud, Clouds and Weather, The Climate Wild Card, and Hurricane Rotation and the Coriolis Effect.
Join NOVA Labs
Create your personal profile.
Track your progress.
Become a part of a community.
Sign up or log in.