Paleoclimatologist Jack Hall and his colleagues, Frank and Jason, are drilling for ice-core samples on the Larsen Ice Shelf for NOAA when the shelf breaks off. When Jack later presents his findings on global warming at a United Nations conference in New Delhi, he fails to convince diplomats or U.S. Vice President Raymond Becker. However, Professor Terry Rapson of the Hedland Climate Research Centre in Scotland believes Jack's theories. Several buoys in the North Atlantic simultaneously register a sharp drop in water temperature