“Saul's talk was a fast-paced discussion of the cold, hard, engineering reality of CO2 production, its relationship to energy consumption, climate change, and the human cost of all that. Saul sliced and diced the numbers every which way from joules per nanosecond to total wave-energy of the entire Earth, and laid out the program we need to adopt if we're going to do something about it.

This was a refreshing, engineer-oriented, can-do approach to climate, one that actually ended on an up note (if you do the stuff you want to do: exercise more, buy better stuff, do fewer business trips, live closer to your loved ones, and so on, you can reduce your energy consumption by 90 percent). ” – cory doctorow