The Largest Hot Desert on Earth Shouldn't Be Able to Support Life

The Sahara Desert covers 3.5 million square miles — bigger than Australia, almost as large as China. In some places, temperatures climb past 120°F. In others, it hasn't rained in years. And yet, life exists here. Humans have lived here for 9,000 years. Ancient civilizations built trade empires across it. NASA studies it. And the desert itself... was once green. In this documentary, we explore the science behind the Sahara's extreme heat and dryness, the Green Sahara that existed just 6,000 years ago, the nomadic civilizations that crossed it for millennia, the legendary city of Timbuktu, and the Great Green Wall — humanity's most ambitious attempt to hold back a desert with something alive. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🌍 Edge of Earth — cinematic documentaries from the world's most extreme places. New documentary every week. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⏱ CHAPTERS: 00:00 — The impossible scale 01:00 — The Sahara's secret past 03:00 — Why it's so extreme 05:30 — Life that shouldn't exist 08:00 — Civilization in the desert 10:30 — The Sahara is changing 12:30 — What it all means ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ #Sahara #ExtremeGeography #Documentary