Study: Observations Refute Claims That Climate Change Is Slowing Pace Of Gulf Stream

gulf streamIn contrast to recent claims of a Gulf Stream slowdown, two decades of directly measured velocity across the current show no evidence of a decrease. –T. Rossby et al., Geophysical Research Letters, Volume 41, Issue 1, pages 114‚Äì120, 16 January 2014

New NASA measurements of the Atlantic Meridional Overturning Circulation, part of the global ocean conveyor belt that helps regulate climate around the North Atlantic, show no significant slowing over the past 15 years. The data suggest the circulation may have even sped up slightly in the recent past. —NASA News, 25 March 2010

The Gulf Stream that helps to keep Britain from freezing over in winter is slowing down faster now than at any time in the past millennium according to a study suggesting that major changes are taking place to the ocean currents of the North Atlantic. –Steve Connor, The Independent, 24 March 2015

A few times a year the British media of all stripes goes into a tizzy of panic when one climate scientist or another states that there is a possibility that the North Atlantic ocean circulation, of which the Gulf Stream is a major part, will slow down in coming years or even stop. Whether the scientists statements are measured or inflammatory the media invariably warns that this will plunge Britain and Europe into a new ice age, pictures of the icy shores of Labrador are shown, created film of English Channel ferries making their way through sea ice are broadcast… And so the circus continues year after year. –Richard Seager, Lamont-Doherty Earth Observatory of Columbia University

Several recent studies have generated a great deal of publicity for their claims that the warming climate is slowing the pace of the Gulf Stream. They say that the Gulf Stream is decreasing in strength as a result of rising sea levels along the East Coast. However, none of the studies include any direct measurements of the current over an extended period to prove their point. But this is exactly what has been underway at the University of Rhode Island and Stony Brook University for the last 20 years: measurement of the strength of the Gulf Stream. And according to a paper published in Geophysical Research Letters, the researchers find no evidence that the Gulf Stream is slowing down. These new results reinforce earlier findings about the stability of Gulf Stream transport based on observations from as far back as the 1930s. —University of Rhode Island, 3 March 2014

The ADCP measures currents at very high accuracy, and so through the repeat measurements we take year after year, we have a very powerful tool by which to monitor the strength of the current. There are variations of the current over time that are natural — and yes, we need to understand these better — but we find absolutely no evidence that suggests that the Gulf Stream is slowing down. ‚Äì Prof H. Thomas Rossby, University of Rhose Island, 3 March 2014

From your “Day after Tomorrow” department (where a slowing Gulf Stream turned NYC into an icebox) comes the claim [that the Gulf Stream is slowing due to Greenland ice melt], from the bowels of Mannian Science. Unfortunately, it looks to be of the caliber of Mann’s Hockey Schtick science. –Anthony Watts, Watts Up With That, 24 March 2015

Overall the latest paper by Rahmstorf and Mann did not even survive birth. –Pierre Gosselin, NoTricksZone, 24 March 2015