Breaking News English

Scientists believe the Sahara desert is twice as old as we computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole thought. Science books generally say the Sahara is around three million years old. However, a new study from a centre for climate computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole in Norway says it could be around seven million years old. Researchers used computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole to try and calculate when large computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole of North Africa became desert. Their computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole showed that global warming seven million years ago dried a lot of the computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole in what is today the African computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole of Chad. A sea called the Tethys Sea started computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole. This made the African summer monsoons less computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole, which helped form sand computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole in Chad. The scientists say this is how the Sahara first started.

The Sahara is one of the world's best-known and computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole deserts. It covers about 10 per cent of the computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole African continent and forms large parts of Algeria, Chad, Egypt, Sudan and other computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole. The computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole stretch from the Atlantic Ocean in the west to the Red Sea in the computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole. Not everyone agrees that the Sahara is as old as the Norway research says it is. Stefan Kröpelin, a computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole in Germany, says real geological evidence is needed to be computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole. He said the Norway research is based on computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole and not evidence, saying: "Nothing you can find in the Sahara is older than 500,000 years old". He added that our computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole of the Saharan climate is only from 10,000 years ago and that our knowledge is "full of computersduneseastfrequentgapsgeologistknowledgelandlargestnationnationsnumberspartspreviouslyresearchsandsshrinkingsuretestswhole".