The Sahara Desert in Africa, known as The Great Desert, is the second largest desert in the world. This vast desert of about 94 million square kilometers is located across much of Africa. Apart from this, it has spread to some other places including Egypt, Morocco, Algeria, Tunisia, Sudan, Nazar, Mali.
It is named after the Arabic word Sahara. The Sahara climate is extremely hot and dry again. Of course, this heat is only during the day, it is very cold at night - sometimes snow can be seen on the top of the mountain. In winter and summer the temperature is -10 to 43 degrees Celsius. Ups and downs. The average annual rainfall is around 20 cm. Occasionally there are severe dust storms in the desert.
Throughout the Sahara Desert there are hills of various shapes, mountain plateaus, sand dunes and almost barren plains. There are also several oasis here. Most of the people of Sahara live in these oases. Some nomadic tribes live in more remote areas of the desert. With all of them, the total population of the Sahara Desert is about 2 million. Their main livelihood is raising goats, sheep, camels and cultivating various crops including dates, wheat and barley.
Scientists believe that the natural environment of the Sahara was different about 14,000 years ago. They say the Sahara region was once green but later turned into the Dhudhu Desert. Natural change was thought to be the reason behind this change. A study published in the journal Frontiers in Earth Science has come up with absolutely shocking information. Researchers at Seoul University there claim that the Sahara Desert is man-made.
Examining the patterns of animal husbandry-civilization in the Sahara region, it has been seen that this civilization was once very much alive in the southern Sahara. A recent study found that the Sahara Desert has expanded by 10 percent since 1920. Which is entirely due to climate change.
The study, published in the Journal of Climate Change, found that Approximately 8,000 years ago, a westward greening was observed in the Nile basin. Later, the animal husbandry economy gradually shifted to agriculture. People continue to migrate to the west in search of fertile land. The Sahara gradually became depopulated. As a result of animal husbandry, the green land was destroyed earlier, because the residents cut down trees in large numbers to create suitable pastures for animal husbandry. As a result, the rainfall naturally decreases in this region.