The latest special issue of the ACME, an online, open access journal of critical geography, is devoted to this topic, and features articles by Erik Swingedouw, Kelvin Mason, and David Featherstone, among others.
The Open Humanities Press, another open access project, has a series of books devoted to Critical Climate Change. Particularly interesting in this regard is Impasses of the Post-Global, which has contributions by a fantastic group of scholars working across a wide variety of genres.
Finally, the most recent issue of American Book Review, which I edited, has some great essays on Post-Apocalyptic Literature. Contributors include Jayna Brown, Brooks Landon, Rob Latham, Tavia Nyong’o, Lee Quinby, Sukhdev Sandhu, and myself.