1. What is considered the most gleefully sci-fi of the various possible sun-dimming approach?

2. A great many of our most brilliant scientists have taken the lessons of the past engineering failures to heart, including what?

3. What is the issue with having reliable solutions to those key questions such as "which countries?" and "screwed how precisely?"

4. According to Levitt and Dubner, authors of Super-Freakonomics, not only did the earth cool after Pinatubo, but also what?

5. What, according to scholars, occurred in the years that immediately followed the eruption of Pinatubo in Japan and India?

6. If geoengineering were ever deployed, what does Klein say would happen?

7. What makes geoengineering the "very antithesis of good medicine?"