Excellent point, blam. The Gulf Stream is thought by that research to have shut down. I don”t know that these guys in their lake research could corroborate that, because isn”t the time of this comet when glaciers were still covering most of Britain during the Younger Dryas?
Yes. This may have caused the Younger Dryas.(?) The melting of the huge (fresh water) ice lakes in NA could have shut-down the conveyer-belt.(?)