Mild winter conditions in Europeare not due to the gulf stream, suggesting that ocean circulation
plays less of a role in climate change than thought.
research shows that the Gulf Stream has little effect on the
contrast in winter temperatures between Europe and eastern
North America, dispelling a long-held assumption. Instead,
atmospheric circulation, augmented by the Rocky Mountains,
plays a larger role, say Dr. Richard Seager of Columbia University's
Lamont-Doherty Earth Observatory, Dr. David Battisti of the
University of Washington, and their colleagues.