I should have replied to this in my first post but I had some vodka okay, yes.
So a blue ocean event is essentially when the arctic has exceeded its capacity to reflect and absorb heat. Normal the arctic, because ice is reflective, actually deflects a huge amount of heat away from the earth by the albedo effect. The blue ocean even is when, during the melting season, the arctic has melted so much that it actually begins to absorb more heat than it can reflect, meaning yet another feedback loop for climate change is triggered. If this happens and suspicions about methane feedback loops are correct, we may be looking at a no-going-back situation in which most large mammalian life on the planet dies off, including us.
Basically unless we start building the infrastructure to somehow survive both extreme weather and the loss of most biodiversity and arable land, we are ultra fucked.