A region of cooling ocean water south of Iceland and Greenland, termed the cold blob, has been documented in the North Atlantic even as global temperatures rise. A study reported by The Local (Sweden) links this feature to potential weakening of the Atlantic Meridional Overturning Circulation (AMOC), which regulates climate and may influence European weather patterns. France 24 reports that Europe's June heatwave was virtually impossible 50 years ago, coinciding with periods of unusually cold waters west of Britain.