Some countries argue that setting up marine protected areas in the Southern Ocean would interfere with their right to “rational use” of natural resources.

Two-thirds of high seas fisheries are depleted or overfished, with impacts of climate change and marine pollution compounding the problem. Technology and political will can reverse the downward trend and move toward sustainability.

A new study by Roz Naylor and postdoctoral scholar Ling Cao offers the clearest picture to date of China’s enormous impact on wild fisheries. The study also presents a more sustainable alternative to the current practice of using wild-caught fish to feed farm-raised fish.