Previous climatic shifts

[questionmark]

DAVIS, Calif., Jan. 29 (UPI) -- Dead zones -- massive stratified columns of oxygen-deprived water -- could become the new normal in oceans around the world as global temperatures continue to rise. New research, published this week in the journal PLOS ONE, links ancient climate change to dead zone expansion.

"Our modern ocean is moving into a state that has no precedent in human history," explained study author Sarah Moffitt, a postdoctoral researcher at the University of California, Davis. "The potential for our oceans to look very, very different in 100-150 years is real."

Moffitt and her colleagues looked at marine sediment cores from all over the world to build a model of the ancient ocean during the last period of global glaciation, between 10,000 and 17,000 years ago. The world's glaciers were rapidly melting during this time period.

Read more: http://www.upi.com/Science_News/2015/01/29/Previous-climatic-shifts-deprived-oceans-of-oxygen/4131422557019/#ixzz3QFBbnLiX

I have a feeling that prawns and lobster will get pretty expensive in a foreseeable future....