Title: Timefulness: How Thinking Like a Geologist Can Help Save the World, Author: Marcia Bjornerud
Title: CO2 Rising: The World's Greatest Environmental Challenge, Author: Tyler Volk
Title: Human Interactions with the Carbon Cycle: Summary of a Workshop, Author: National Research Council
Title: The Medea Hypothesis: Is Life on Earth Ultimately Self-Destructive?, Author: Peter Ward