We live in a period of significant climate change. Sahara, 2000 years ago this place looked different.
The area of of rivers and lakes provided the Ancient Rome cereals and wine. Syrian desert was produced timber for Egypt.
Today it is dead land. It is terrible to imagine, but by the end of the 21 st century might look like the part of Russia.
According to the UN in the world today is suffering from drought more than a billion people. Every hour desert robs people 20 kilometers of arable land.
According to forecasts by the year 2025 will not be enough water for three billion inhabitants of the land, and by the end of 21 century humanity is almost will not remain fertile soil.