The following list includes more than 400 additional qualified scientists, with their home institutions, and the peer-reviewed studies they have published in professional journals, which reveal evidence of the moderate 1,500-year Dansgaard-Oeschger cycles. Together with a previous list released by Hudson on Sept. 12, 2007, this brings the total of scientific researchers who have published evidence of this natural cycle to more than 700. The lists also include dozens of authors who have published studies on the linkage of the 1,500-year cycle to variations in solar activity. 

The Hudson lists include researchers from many of the world’s top scientific institutions, including the Lamont-Doherty Earth Observatory affiliated with Columbia University, the Scripps Oceanographic Institute, various branches of the University of California, Australia’s Macquarie University, Canada’s Simon Fraser University, the Geological Survey of Denmark, the Russian Academy of Sciences and the Chinese Academy of Sciences, among many others.