Conceptually it’s fine in the overall scheme of what could happen in a theoretical human future. And using members of an environmental religious cult to outline how the changes wrought on the planet might bring about our downfall is clever.
The narrative Style did however grate over time, especially when it started to pace like a trashy holiday novel toward the end.
The end reminded me that despite everything that was good about Oryx and Crake - the opening chapters - much of the rest of that novel is already lost to my memory and I suspect this one will do the same.