New Dark Ages. Collapse

The balance of power on Mars has been shattered, while Earth is rapidly losing oxygen. As the Martian colonies are torn apart by rebellion and internal political strife, Earth finds itself on the brink of suffocation because of an unknown pathogen that stops plants from producing oxygen. In an attempt to prevent catastrophe, scientists trace the problem to a mysterious carbon world far beyond our Universe... only to discover that they are utterly unprepared for the secret it holds.

Collapse is the second installment in the New Dark Ages series. It is a devastating story about human blindness, hubris, and the inevitable descent of civilization into total darkness.