Mr Canfield, I presume?

 

Will survive 

From a recent discussion on JMG´s blog:  

>>>As for a Canfield event, keep in mind that the Black Sea is already anoxic — fifty million years from now, there’s going to be a lot of petroleum where that sea used to be — and that oceanic anoxic events are fairly common in the history of the planet; they’re one of Gaia’s normal responses to a greenhouse event, and while they cause a lot of extinction in deepwater species, species elsewhere are basically unharmed. I expect an oceanic anoxic event in the tolerably near future, for whatever that’s worth.>>>

No more sushi, then?