“More than 90 per cent of all the additional energy accumulating on Earth because of human changes to the climate system has ended up in the ocean as heat,” she writes. The burning of fossil fuels and changing land use have led to an energy imbalance, which ends in the ocean with heat. Finally, Czerski discusses the future of the ocean and asks us to consider our relationship with it, noting that science must play the leading role in guiding our actions. Some of Czerski’s most fascinating explorations are below the surface: She writes intriguingly about the “messengers” of the blue machine, light and sound, as well as the “passengers” and “voyagers” of the ocean, such as plankton, penguins, turtles, seabirds, and fish. She also shares her complaint regarding the sentiment that “We know more about the Moon/Mars than we do about the deep sea” and explains why it is untrue. The author continues by discussing the shape of the ocean, including the historical debate regarding continental drift and evidence that the first Americans passed along a coastal route 16,000 years ago. The major physical influences include temperature, salinity, density, and spin. In a book replete with diagrams and illustrations, London-based physicist and oceanographer Czerski, author of Storm in a Teacup, begins by discussing what “the blue machine” is and how it works. An eclectic collection of essays exploring the ocean and its impact on the lives of humans.
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