Learn how conditions in the Pacific Ocean result in El Niño, how El Niño changes weather patterns, and why it's difficult to predict what effect El Niño will have in any given year. Welcome to Chaos Theory.

A brief video that describes how hurricanes form (2:03). Learn how hurricanes begin as storms and the effects that El Nino may have on developing hurricanes.

Watch this video clip and learn what El Nino is and how it impacts our global system (4:14). Learn how trade winds divert from their normal direction and the influences this has on our weather.

This video segment shows how some geographical regions are interrelated (1:06). This video examines hurricanes, drought, human activity, and El Nino in relation to each other.