The strength of the Florida Current, which marks the beginning of the Gulf Stream, has weakened in force to the lowest level of the past 110 years, according to new research.
The current flows between Florida and Cuba before becoming the Gulf Stream near the Bahamas.
While precise measurements of the current go back to only the early 1980s, scientists say they were able to determine its past strength by how it affected coastal sea levels in the region.
The study confirms earlier findings that show the Atlantic Meridional Overturning Circulation is slowing down due to climate change. That complex of currents wields a key warming influence across the Atlantic to much of northern Europe.