April 08, 2012
City of Z
Thanks to Google Earth, and forestry, archeologists in Brazil are finding geoglyphs carved into the ground in the Amazon rainforest.
Built long before Christopher Columbus set foot in the new world -- the sites date from 200 to 1283 A.D.-- the earthworks are the remains of roads, bridges and squares that formed the basis for a lost civilization, according to a study published in the journal Antiquity.
Tempting as it is to ascribe civilizational collapse in the New World to the arrival of Europeans with their "guns, germs, and steel" these dates neatly match an earlier calamity, the end of the Medieval Warm Period, which put paid to classical Mayan civilization, the Chaco culture/interaction sphere, and hundreds of years of Viking settlement in Greenland. Given there has been no statistically significant global warming trend since 1995, our little Ice Age seems set to continue.
Posted by Ghost of a flea at April 8, 2012 08:47 AM