Antarctica is the largest desert on the planet, because a desert is defined by how little water falls from the sky rather than by heat, and almost nothing falls on the frozen continent.

Antarctica is the largest desert in the world. Not the largest cold desert, or the largest unusual one, but the largest desert of any kind, ahead of the Sahara by several million square kilometres. The reason it qualifies has nothing to do with sand or heat. A desert is defined by how little water falls [...] The post Antarctica is the largest desert on the planet, because a desert is defined by how little water falls from the sky rather than by heat, and almost nothing falls on the frozen conti