Oceans in Crisis: Securing the Future of our Planet At the invitation of the Fishmongers’ Company and the University of Exeter, the Thames Warden, Martin Bigg, on behalf of the Worshipful Company of Water Conservators and the Water Conservation Trust, attended Fishmongers’ Hall for a series of talks on the future of our oceans. Professor Callum Roberts, University of Exeter, described how the oceans had absorbed heat to keep the global temperature rise to about 1.5C. Without their heat capacity temperatures would have risen by 36C. There are now 70% fewer fish, mammals and reptiles in the oceans than before the onset of industrial fishing. George Duffield, Blue Marine Foundation, reminded us that 71% of the earth’s surface is ocean but the destruction and overfishing of the oceans is out of sight and out of mind. Currently there are 4.5 million fishing vessels worldwide. By combatting overfishing, we can help life in the oc...