Rewatching them, they’re both explicitly marxist.

I don’t know how reputable they are, but these two video from their youtube caught my attention:

How Economists Invented Austerity & Paved the Way to Fascism

Development, Climate Change & Capitalism

They’re both very critical of capitalism, perhaps even explicitly Marxist, as in the second video Ying Chen refers to her paper How Has Ecological Imperialism Persisted? A Marxian Critique of the Western Climate Consensus.