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www.livescience.com/4180-sahara-desert-lush-populated.html

"The climate change at [10,500 years ago] which turned most of the [3.8 million square mile] large Sahara into a savannah-type environment happened within a few hundred years only, certainly ...

en.wikipedia.org/wiki/Sahara

The Sahara (UK: / s ə ˈ h ɑːr ə /, / s ə ˈ h ær ə /; Arabic: الصحراء الكبرى ‎, aṣ-ṣaḥrāʼ al-kubrá, 'the Great Desert') is a desert located on the African continent. It is the largest hot desert in the world, and the third largest desert overall after Antarctica and the Arctic.

www.britannica.com/place/Sahara-desert-Africa/Climate

Sahara - Climate: The age of the Sahara has been a matter of some dispute. Several studies of the rocks in the region indicate that the Sahara became established as a climatic desert approximately 2–3 million years ago, an interval that spanned from the late Pliocene to the early Pleistocene Epoch.

sciencestruck.com/sahara-desert-climate

The southern region of the Sahara desert has a dry tropical climate, wherein a stable continental air mass exists along with an unstable marine air mass.The annual rainfall in this region is about 5 inches, with snow in higher regions. The average temperature is about 31.5 °C (88.7 °F) and in the higher elevations is about 5 °C (41 °F).

www.messagetoeagle.com/changed-green-sahara-desert

MessageToEagle.com – The Sahara, which is the world’s largest desert covers one third of the African continent.In ancient times, some thousand years ago, this vast area was fertile grassland. Then something happened and the Green Sahara turned into a desert.

www.smithsonianmag.com/science/sahara-millions-years-older-thought-180952735

The Sahara Is Millions of Years Older Than Thought The great desert was born some 7 million years ago, as remnants of a vast sea called Tethys closed up

www.thoughtco.com/sahara-desert-overview-1435189

The harsh conditions found in the Sahara Desert have also played a role in the presence of animal life in the Sahara Desert. In the central and driest part of the desert, there are around 70 different animal species, 20 of which are large mammals like the spotted hyena. Other mammals include the gerbil, sand fox, and Cape hare.

www.britannica.com/place/Sahara-desert-Africa

Sahara, (from Arabic ṣaḥrāʾ, “desert”) largest desert in the world. Filling nearly all of northern Africa, it measures approximately 3,000 miles (4,800 km) from east to west and between 800 and 1,200 miles from north to south and has a total area of some 3,320,000 square miles (8,600,000 square km); the actual area varies as the desert expands and contracts over time.

www.livescience.com/23140-sahara-desert.html

The Sahara is the largest hot desert in the world, and the third largest desert behind Antarctica and the Arctic, which are both cold deserts. The Sahara is one of the harshest environments on ...

www.ducksters.com/history/africa/sahara_desert.php

The Sahara Desert is the largest hot desert on Earth (the cold desert of Antarctica is larger). The Sahara has played an important role in the development of African culture and history. Where is the Sahara Desert? The Sahara desert is located in North Africa. It covers much of North Africa stretching from the Atlantic Ocean to the Red Sea.