Carbon dioxide absorbed by our ocean waters is causing fish to lose their survival instinct.
Carbon dioxide lowers the pH in the water, which in turn impairs the sensory systems in fish. Among other things, fish lose the ability to distinguish between smells, which is one way they avoid predators. The pH of normal ocean surface water is approximately 8.14, but many recent climate models, including one from the Intergovernmental Panel on Climate Change (IPCC) predict a pH of 7.8 by 2100.
Read more at MailOnline.