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Atacama Desert - Driest Place On Earth

The Atacama desert in South America has been in a super-dry state
far longer than any other location on Earth - nearly 40 million years
in some places.

The Atacama is well known for its lack of rainfall,
but scientists are only now getting a handle
on how long it has experienced low precipitation levels.

Dr Tibor Dunai from Edinburgh, UK, is working in the region to
date surfaces. His team reports the existence of hyper-arid conditions
in the desert have lasted at least 20 million years.

"If you camp there, even after five days, you will notice that
there are no flies because there is nothing for them to eat;
that's how dry it is," Dr Dunai told the BBC.

"The desert is known for saltpetre which was very important in
explosives production in the past. It is the only place
in the world where it has accumulated because it is
so easily dissolved by rainfall."

There are locations in the Atacama where not a single drop of rain
has been recorded by humans, and the Edinburgh University researcher
has studied dry river beds he can show have had no water
running through them for 120,000 years.

But it is with the general hyper-aridity conditions of the Atacama
that the Scottish-based scientist is most interested.
Hyper-arid zones can receive some moisture (less than a few tens of
millimetres per year), although this can be delivered simply by fogs.



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Important Links Worth Visiting

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Kahin mujhe pyar toh nahin hogaya..

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