AMOC

A new warning says a collapse of the Atlantic Meridional Overturning Circulation would be catastrophic, bringing 'ice age' winters to Europe, raising sea levels along North America and disrupting African and Asian monsoons. The argument, though, is that even after such a collapse the circulation could in principle be restored – but only through difficult, large-scale interventions. Commenters are weighing how realistic rescue plans would be given the political and engineering challenges involved.