Ask Lemmygrad

I really like Foster's work as Zhemax suggested. He's my favourite Marxist ecologist and I've really enjoyed everything he has written.

David Harvey would be a good option. He was a Marxist geographer who used that field to explore urbanism and human-nature dialectics. Justice, Nature, and the Geography of Difference was a really big book for me in understanding what a landscape means.

Richard Lewontin too. He was a Marxist evolutionary biologist whose The Dialectical Biologist was probably my biggest scientific influence. It was huge for understanding life sciences holistically, but isn't focused on environmentalism itself so much as the awareness beneath it.