Maelstrom

Second in the Rifters Trilogy, Hugo Award-winning author Peter Watts' Maelstrom is a terrifying explosion of cyberpunk noir.

This is the way the world ends:

A nuclear strike on a deep sea vent. The target was an ancient microbe—voracious enough to drive the whole biosphere to extinction—and a handful of amphibious humans called rifters who'd inadvertently released it from three billion years of solitary confinement.

The resulting tsunami killed millions. It's not as through there was a choice...