Decline in global oceanic oxygen content during the past five decades

http://www.themillbrookindependent.com/content/sos-sucking-oxygen-out-sea
SOS: SUCKING OXYGEN OUT OF THE SEA
by Bill Schlesinger
Tue Mar 21st, 2017
This report is based on this paper -
Decline in global oceanic oxygen content during the past five decades
http://www.nature.com/nature/journal/v542/n7641/abs/nature21399.html

Schmidtko, S., L. Stramma, and M. Visbeck. 2017.   
Nature 542: 335-339.