Accuweather
http://global-warming.accuweather.co...ed_as_t_1.html

"New research from the University of Sheffield, which is published in
the journal Nature, has identified a mega-flood path across North
America which channelled melt-water from a giant ice sheet into the
oceans. This triggered a rapid cooling period nearly 13,000 years ago,
otherwise known as the Big Freeze or Younger Dryas."

David Christainsen