[Mistletoe]

If you are wondering what happens then:

>The Gulf Stream acts like a giant conveyor belt, transporting warm water from the tropics to the North Atlantic, which gives Western Europe its unusually mild climate. A collapse would disrupt this heat transfer, causing average temperatures in regions like the UK and Scandinavia to drop by as much as 10-15°C (18-27°F) in a short period. This would lead to much colder, harsher winters and potentially widespread crop failure due to freezing conditions and a shorter growing season. Ironically, while the rest of the world continues to warm, Europe would experience a rapid cooling.