the.com/sahara
the world's largest hot desert, and it used to be a lake district with hippos.
means a vast desert spanning north africa, roughly the size of the united states, where sand is only about 25% of the terrain.
from from the arabic sahra, meaning desert or wilderness, plural sahara — so calling it the sahara desert is technically saying the desert desert.
green saharawas lush grassland with lakes 6000 years ago
sizeroughly the size of the entire united states
dust travelsblows across the atlantic to fertilize the amazon
mostly rockgravel plains and mountains, not just dunes
for instance
erg chebbi — morocco dune sea rising over 150 meters near merzouga
lake chad — shrank over 90% since 1960s, sahara's southern edge
tassili n ajjer — algeria rock art showing swimmers and cattle, 10000 years old
ahaggar mountains — volcanic peaks in algeria reaching 3000 meters