Exceptional twentieth-century slowdown in Atlantic Ocean overturning circulation
S. Rahmstorf, J. E. Box, G. Feulner, M. E. Mann, A. Robinson, S. Rutherford, and E. J. Schaffernicht
Nature Climate Change (23 March 2015)
DOI: 10.1038/nclimate2554
Cooling has been observed over the past century in the northern Atlantic, and this study presents multiple lines of evidence that suggest it may be a result of a reduction in the Atlantic meridional overturning circulation. The decrease in this circulation, particularly after 1970, seems to be unprecedented in the past millennium and melt from the Greenland Ice Sheet may be a contributing factor.