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🐪
🌵 Deserts
🌍 Sahara Desert
World's largest hot desert; 9.2 million km² of sand, rock and sky
North Africa 1798 Deserts
🌵 Key Facts
1
9.2 million km² — largest hot desert; roughly the size of the USA
2
Temperature extremes: −18°C at night to 55°C in the day in the same location
3
Only 25% is sand (erg); most is gravel (reg) and rocky plateau (hamada)
Was a lush green savannah 6,000–11,000 years ago with rivers, lakes and hippos
Quick Reference
Category
🌵 Deserts
Country / Region
🌍 North Africa
Key Year
1798
About
World's largest hot desert; 9.2 million km² of sand, rock and sky