Hot, Flat, and Crowded has seventeen chapters. What's Chapter 18? Chapter 18 will be a completely new chapter that I’ll add to the next edition of the book: Version 2.0. In it I hope to include the best ideas and proposals sent in from readers: ideas about clean energy, energy efficiency, and conservation; about petropolitics and nation-building in America; about how we can help take the lead in the renewal of our country and the Earth alike by going Code Green. I am eager for your suggestions — please post them here.