> It weakened by 4% over 40 years. Is that a little or a lot? Do you know? The Gulf Stream is what’s keeping my country habitable, so maybe I want a bit more r

> It weakened by 4% over 40 years. Is that a little or a lot? Do you know? The Gulf Stream is what’s keeping my country habitable, so maybe I want a bit more reassurance? The periods you mention are associated with crop failure and widespread famine. There were a lot less people back then.