T18-b+Easter+Island+Slides

T18-b+Easter+Island+Slides - Anasazi Mesa Verde, CO Maya...

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1 What happened to the great civilizations of the past? Are we following in their footsteps? Anasazi Mesa Verde, CO Maya Chichen Itza Yucatan, Mexico Ecocide People inadvertently destroying the environmental resources on which their societies depend Easter Island 2300 miles 1200 miles Traditional Polynesian Boats
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2 27-28 o S latitude Area = 64 mi 2 Highest elevation = 507 m/1660 feet MAT = 20 o C/69 o F MAP = 112 cm/44" Rain = 140 d/yr One possible view of native vegetation based on nearby French Polynesia Easter Island Vegetation Today Pollen Analysis Invasive Species Rats
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Vegetarian Bananas Taro Sweet potatoes Sugarcane porpoises, fish, seabirds, land birds chickens, rats human Meat Desertification Air Quality Soil Quality H 2 O Quality Food Quality Springs dried up following desertification Most statues toppled by 1864 Statue construction 1200 to 1500 AD Why did the Easter Island population deplete their resources so severely? Why didn’t they do something
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T18-b+Easter+Island+Slides - Anasazi Mesa Verde, CO Maya...

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