Termination Shock, by Neal Stephenson
If this book, and the previous one by the same author which I have read, Cryptonomicon, [albeit a much later book in his canon] are representative, then they are all  very long indeed; this one runs to 697 [!] pages, and the font used for the text is small—possibly 12pt—but I can genuinely say that this was a book I really didn’t want to end. It will probably be classified as SciFi but, given that it has been written within the last couple of years, on recent evidence, I would describe it as prescient, because IMHO one doesn’t have to be a tree-hugging, panicking environmentalist to discern that the scenario presented here is all too plausible; even possible—I hope against hope it is not probable. It is the near future; although the exact year is not specified, but COVID-27 is mentioned [subsequent to COVID-23 and our by-now familiar COVID-19], so it could be in the region of ten years hence, at least, and the climate has significantly worsened. The explanation for the book’s title will follow some further background information.
There are several different strands to the narrative, starting in different locations, but the reason for that will soon become clear. I had to put my republican sentiments into suspended animation for the duration of this story but, thankfully, that wasn’t too difficult, despite one of the main characters being the fictitious queen of the Netherlands, Frederika Mathilda Louisa Saskia, although the Dutch ‘royal’ family is famously low-maintenance; Saskia, as she prefers to be known by those close to her, is also a likeable person [but that has no bearing on my principles, as in the British situation]. A Texan billionaire, T.R. Schmidt [aka McHooligan, the publicly marketed persona for his chain of truck stops] has invited a somewhat disparate group of prominent persons to a conference in Houston, to discuss the climate crisis, and Saskia is one of these; although her constitutional inability to act directly & unilaterally is explained in great detail [as is much else: one of the commendable aspects of Stephenson’s narratives]. Unfortunately, her incoming self-piloted jet aeroplane crashes on landing at Waco airport; Houston being unavailable as a result of the intense heat; but she, and her minimal entourage survive, albeit with a few non life-threatening injuries, to continue the journey, and during her rescue from the cause of the crash, feral swine [and, randomly, although not much more, an alligator], she encounters another main character in the story: Rufus [Red] Grant, a self-employed operator trading under the name FERAL SWINE MITIGATION SERVICES.
Another character, who initially also seems like a rather random inclusion, is a young Canadian man by the name of Deep, although he generally goes by the nickname of Laks, which is derived from the salmon he catches for a living; when he can’t do that in his native British Columbia, out of season, he works as a welder. Initially, these aspects of his character, in addition to his high level of fitness and toned physique, and the traditional Indian martial arts he enjoys practising because of his Indian heritage, don’t seem to connect with the rest of the narrative, but slowly & surely, through the literal, as well as emotional journey he undertakes, the author draws these loose strands together, and they later connect very satisfactorily.
Schmidt’s proposal, which is demonstrated after all the scrupulously polite & accommodating preliminaries, is to spread the sulphur which he has available in vast quantities into the upper atmosphere, providing a global reflective blanket to mitigate the greenhouse effect of the sun, which has been exacerbated by human-produced carbon dioxide. He is going to do this unilaterally and, it transpires, has already started doing it [the technical details are quite involved, so better absorbed from the narrative]; he hopes to also encourage other strategically placed nations to do the same, hence the conference, although the invitees are not necessarily the most geographically, or politically, obvious. Hence the jeopardy in the story: a scheme such as this has been proposed in similar forms previously, but a scientific consensus was never reached so, with a nod to his location, Schmidt decided that he must take the metaphorical bull by the horns and use his money for humanity’s benefit. Unfortunately, not all of humanity would be similarly benefited, and nations such as China & India, which were not invited, are significantly concerned, for political as well as geo-climatic reasons.
The title is the name of what is generally reckoned [using the climatic data currently available to the scientists] will happen if climate-mitigating measures, such as that proposed, and already put into action by Schmidt, are precipitately terminated: the climate would go into a sort of shock, from which it might never recover; or, at least, not in a way which would be conducive to long-term survival of the human race. For several different reasons, I cannot recommend this book highly enough: whether it would convince waverers, or hardline climate change sceptics, of the need for rapid & decisive climate mitigating action is debatable, but aside from the politics, it’s a damn good and well-written story—I would also recommend Cryptonomicon, if you have any interest at all in cryptography, but the history aspect of it is also illuminating, and written in a very approachable way. The [large!] paperback I read was published in 2022  by the Borough Press, an imprint of HarperCollinsPublishers Ltd., London, ISBN 978-0-0084-0440-6.