Hays, James -
(born 1933): American micropaleontologist and researcher at the Lamont Doherty Earth Observatory of Columbia University. He was the lead author of the scientific paper that first supported the Milankovitch Theory by investigating the stratigraphy in deep-sea sediment cores from the southern Indian Ocean. In the cores were clear imprints of Milankovitch’s proposed cycles. In his paper he wrote, "We are certain now that changes in the earth’s orbital geometry caused the ice ages. The evidence is so strong that other explanations must now be discarded or modified."