Contributing authors: Steffen M. Olsen (1), Marius Årthun (2), Tor Eldevik (2), Jan-Stefan Fritz (3), Karin M. Larsen (4), Raeanne G. Miller (5), Ben Moat (6), Marilena Oltmanns (7). Corresponding Author: Steffen Olsen, smo@dmi.dk Contributing Institutions: (1) Danish Meteorological Institute, (2) University of Bergen, (3) German Marine Research Consortium, (4) Faroe Marine Research Institute, (5) SAMS Research Services Ltd., (6) National Oceanography Centre Southampton, (7) GEOMAR Helmholtz Centre for Ocean Research Kiel This policy brief was produced in support of the SEARICA Science-Policy breakfast discussion on the Slowing Gulf Stream, on the 4 September, 2018, held at the European Parliament ASP 5G1. Presentations given at the meeting can be downloaded here: http://doi.org/10.5281/zenodo.1409470 About Blue-Action: Blue-Action aims to improve our ability to describe, model, and predict Arctic climate change and its impact on Northern Hemisphere climate, weather, and their extremes, and to deliver valuated climate services of societal benefit. Blue-Action contributes to the implementation of the Trans-Atlantic Ocean Research Alliance, to the EU’s Blue Growth Agenda, and to a long-term strategy to support sustainable growth in the marine and maritime sectors as a whole. Blue-Action supports the implementation of the Galway and the Belem Statements and the achievement of UN SDG 8, 9, 13.

Blue-Action and AtlantOS have received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 727852 and No 633211.