Sahara Desert

Sahara Desert, the world's largest hot desert (9.2 million km²), stretches across North Africa with relentless dunes, rocky plateaus, and extreme temperatures (over 50°C/122°F). Home to iconic landscapes like the Erg Chebbi dunes and Tassili n'Ajjer's ancient rock art, its hyper-arid core sees years without rain. Despite harshness, nomadic Tuareg tribes and adapted wildlife (e.g., fennec foxes) persist. Climate shifts over millennia—from lush greenery to today’s sea of sand—make it a stark testament to Earth’s climatic volatility.