TL;DR: New statistical model suggests that the AMOC (including gulf stream) could collapse to the much slower pattern by 2025 to 2095. This is a century earlier than previous predictions and the researchers were concerned. There is some questions on the accuracy of the model used, and that needs more research.

Personally I don't think we should wait for further testing to vet the model before acting. Try to do better now.

but other scientists are not so sure.

Is it just me who thinks we should act as if it is going to collapse soon, even if a few scientists aren't sure?