Today we’re going to take a closer look at cities, examine how these large complex structures are organized, and identify patterns and differences in land use around the world. We'll begin with a quick recap of Central Place Theory, then...

At the beginning of the Triassic Period, with the continents locked together from pole-to-pole in the supercontinent of Pangea, the world is hot, flat, and very, very dry. But then 234 million years ago, the climate suddenly changed for...

“Animals in Deserts” explores plants and animals that live in deserts.

This video explores five fun facts about climates.

A new study by MIT suggests that the Sahara desert may have once flourished with nature.