presentation sahara

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THE SAHARA 6000 YEARS AGO !

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Page 1: Presentation Sahara

THESAHARA

6000 YEARS AGO !

Page 2: Presentation Sahara

The Sahara Today

Page 3: Presentation Sahara

Desert Zones In the World

The largest deserts are located in the dry areas of our planet !

Page 4: Presentation Sahara

Sahara TIMELINE

• 22,000 to 10,500 years ago: The Sahara extended 250 miles further south than it does today.• 10,500 to 9,000 years ago: Monsoon rains begin sweeping into the Sahara,

transforming the region into a habitable area swiftly settled by Nile Valley dwellers. • 9,000 to 7,300 years ago: Continued rains, vegetation growth, and animal

migrations lead to well established human settlements, including the introduction of domesticated livestock such as sheep and goats.• 7,300 to 5,500 years ago: Retreating monsoonal rains initiate desiccation in the

Egyptian Sahara, prompting humans to move to remaining habitable niches in Sudanese Sahara. The end of the rains and return of desert conditions throughout the Sahara after 5,500 coincides with population return to the Nile Valley and the beginning of pharaonic society.

Page 5: Presentation Sahara

Why ?

• Earth´s Orbital TILT!

Page 6: Presentation Sahara

Earth its a system

• Everything we do to alter the natural equilibrium of our planet will have unexpected side effects, this is why its very important to study and understand in dept the way our planet WORKS, if not we will not have a place to live in!

Page 7: Presentation Sahara

References

• http://pre15.deviantart.net/a508/th/pre/i/2012/231/f/4/green_sahara_concept_by_darkriku90-d5bo8fc.jpg

• https://en.wikipedia.org/wiki/File:Tassili_-_whites_and_blacks_leaving_in_harmony%3F.jpg• https://upload.wikimedia.org/wikipedia/commons/a/a7/Sahara_satellite_hires.jpg• http://www.huffingtonpost.co.uk/entry/sahara-desert-tropical-rainforest_uk_58400b97e4b0bd623ad

9dce7• https://www.quora.com/Why-are-most-deserts-located-away-from-the-equator• http://montessorimuddle.org/2011/04/21/global-atmospheric-circulation-and-biomes/• http://www.wallpaperup.com/438038/sand_clock_time_sky_wood.html• http://agron-www.agron.iastate.edu/courses/Agron541/classes/541/lesson07b/7b.1.html• http://www.fatemag.com/the-truth-about-pole-shifts/• http://www.livescience.com/4180-sahara-desert-lush-populated.html