Peru's coastal ecosystem is only one of the country's amazing features. But travelers don't need passports, expensive plane tickets, or heavy suitcases to examine the biodiversity of coastal Peru. Armed with a field trip log and graphic...

What's behind Earth's wild, wonderful, and sometimes weird weather? A lesson from PBS's Weather and Climate series takes viewers on a worldwide trek to examine the many interactions between Earth's atmosphere, oceans, and land masses....

Humans cannot survive without water, and neither can civilizations. A brief history of ancient civilizations and their dependence on—and management of—water demonstrates how states either flourish or flail based on the availability of...

Who is to blame for widespread famine? Crash Course World History guides high schoolers through a video about droughts, famines, and whether the weather or human activity is at fault for each.

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.