Got what I wanted in the first half: analysis of historical case studies of socialist environmental policies (mainly the USSR, with comparisons to Cuba). The book is worth reading for this section alone, which provides really interesting context and refutations of widely accepted 'environmentalist' anti-communist messaging.
Then two thirds of the way in it veers into a lengthy tangential discussion of Lysenko, epigenetics, and evolutionary philosophy—which I found incredibly dense and hard to parse—that is then the remainder of the book. This section isn't mentioned anywhere on the blurb, and felt a frustrating distraction and made me put the book down for months.
I also don't think the conclusion did a satisfactory job as conclusion, and it included a rather unfair and incurious seeming dismissal of 'degrowth' ideas, never previously mentioned and here just swiftly simplified egregiously then rejected.
The appendixes provided interesting context, though I wish appendix four ('Cuban Socialism and Agroecology') was longer with a better description and analysis.