Atlantic Overturning in decline?

A large body of evidence identifies the Atlantic Meridional Overturning Circulation (AMOC) as an important driver of changes in climate. Changes in the AMOC have been implicated in climate events that occurred many thousands of years ago [1], and others that occurred much more recently, such as in the mid-1990s [2]. Continuous monitoring of the AMOC has only been possible since 2004 [3]. Measurements from the RAPID-MOCHA array suggest a recent decline in the AMOC [3], but at less than a decade this record is still short. Here we present evidence from other observations and a climate model which suggests that this recent measured decline is not merely a short term fluctuation but is part of a substantial reduction in the AMOC occurring on a decadal timescale.