As always, Annalee Newitz is astoundingly smart. She fills this book with many interesting ideas. Unfortunately, the story she writes around the ideas in this book is a little weak. The most notable example is in the first section where two factions have little reason to trust each other, yet they do so in only a couple pages.

Terraformers is still worth reading for the concepts, but Newitz's previous two works of fiction are easily superior.