No, it is growing in size every year through the process of desertification.
No.
No, the Sahara has been growing steadily for decades due to desertification.
It's always been the desert
The Nile runs along the Eastern edge of the desert. It is the longest river in the world and has always been vital to the civilisations around it.
For thousands of years there have been babies born in the Sahara. Everyday there are babies born there, especially in the cities and towns of the Sahara.
Camels transport goods across the Sahara Desert. Camels are used fort his job because they are able to adapt to the heat of the desert.
about 20,000 tourists a year.
Dr. Newton Jibunoh is the present-day explorer who has crossed the Sahara alone -- twice. He is a Nigerian who has devoted his life to the prevention of desertification. But the answer to the question who reached the Sahara first, is completely lost in the sands of time. Actually the Sahara was an area of grasslands and lakes (already inhabited by people) until it became a desert because of climate change as recently as about 4000 BC. And today the desert is still expanding -- a somber fact that people such a dr. Jibunoh would want to whole world to know. Scientists are warning us that millions of African people could be forced to move elsewhere in the near future because of this desertification.
none. and if it has ever been, extremely rare
The area of the Sahara had already long been a desert by 2000 BCE. Lack of precipitation and a rise in temperature had dried up the area by 3400 BCE.
No, underground scans show many riverbeds and there is evidence of it having been heavily forested during the last few ice ages.
No, the Sahara desert is not where some of the earliest human fossils have been found. The earliest human fossils have been discovered in other parts of Africa, such as the Great Rift Valley and South Africa. The Sahara, being a desert, is not conducive to preserving fossils from this early period.