More fish – surely we just need to farm the sea?

Stephen Hall -

Molluscs are the principal farmed marine product: giant clam exclosure, Solomon Islands. Photo by Mike McCoy

Some of the threats posed by climate change can appear rather esoteric or abstract. One of these is ocean acidification – it is not immediately obvious why we should care. A recent paper by Sara Cooley and colleagues give a good example of why the threat of changing ocean chemistry matters.