Paul Vernadsky (Solidarity 520) wrote a valuable article on Marx and the environment, and a review of a book on the same topic. I want to pick up on one point.
“Similarly, Engels is sometimes accused of rejecting the second law of thermodynamics in the course of an argument with scientists over the heat death hypothesis. William Thomson (later Lord Kelvin) had supported the latter claim to justify the role of God in the universe. Engels rejected the role of a deity on materialist grounds, while accepting that entropy was a feature of the universe. Latter day scientists agree with Engels: