This really is an outstanding book - or, perhaps, two outstanding books. The first half is essentially the (surprisingly compelling) story of climate science, told in parallel with the remarkable career of Wally Broecker. Its author, Robert Kunzig, wrote one of the great popular science books - Mapping the Deep: The Story of Ocean Science - and has that brilliant knack of slipping difficult science into a familiar, human narrative, so you "get it" without realising you're being challenged.
But it's the second half which is, literally, thrilling, as Kunzig and Broecker outline their vision of CO2 as a "fixable problem", just as the disposal of sewage was a century ago. Their fix is a radical invention by physicist Klaus Lackner (who sounds a genius) which will allow CO2 to be removed from the air by millions of car-sized "carbon scrubbers" and then sequestered in deep ocean or oil wells, or in basalt schists in Iceland.
This is a book that offers hope to the climate crisis. Not that the authors for a second make light of its seriousness: quite the reverse. But they feel that not enough will be done to reduce emissions until it's too late. Unless the Lackner machines can come to our rescue.
An absolutely vital book, and beautifully written. Science book of the year, in my opinion.