Title: What Changed The Green Sahara Into A Desert? | MessageToEagle.com
Headings: What Changed The Green Sahara Into A Desert?
What Changed The Green Sahara Into A Desert?
So, what caused this major climate change?
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Content: “Given the very strong dependence of vegetation on water availability, the end of the ‘Green Sahara’ came about quite suddenly around 5,500 years ago,” Schmidt said. “ Thus, a very slow change in the orbit (led) to an abrupt collapse in that ecosystem.” The Sahara is a vast area and we should not dismiss the possibility that parts of the land dried up abruptly while it took other regions a longer period of time to transform into a desert. “It seems that drying was progressive in our area, but it does not automatically mean that it was the case in other areas such as Western Sahara,” said Francus. “ We cannot rule out completely the possibility of abrupt drying. Understanding the regional differences in climate change is the next challenge for climate scientists.” As an example, Francus mentions the Younger Dryas where an abrupt climate change took place between 12,800 and 11,500 years ago. According to the National Oceanic and Atmospheric Administration, the end of this period was particularly abrupt when, for example, in Greenland, temperatures increased 18 degrees Fahrenheit in about a decade. “Many scientists think that abrupt climate changes are possible in the future, but the nature, direction and intensity of these changes will most probably be region-dependent,” Francus said. Francus also noted that there are some models that cannot predict an abrupt climate shift at all.