It seems to be the year of ocean non-fiction, and this is a good one. Kingdon focuses on the creatures who make, and listen to, sound underwater in this tightly focused, readable and engaging book. Inevitably, there is a lot about whales, belugas and dolphins, but a fair few fish pop up too. Kingdon brings more of a mournful quality than a furious one to the inevitable documentation of destruction. As creatures with pretty crap hearing, she demonstrates, we can vastly underestimate the damage our noisy lives are creating. Will this end the world - probably not, but it will deprive us of much of what makes the world wondrous.