All book sales are exciting, especially to an early career literary agent, but this one is an extra dose of fun. Mario is a college friend, and this is his debut book! Disposable City, which will be published by Nation Books (a Hachette subsidiary and part of the excellent nonprofit Nation Institute) is a deeply personal investigation of the present and future peril of sea level rise and climate warming in the Magic City (a harbinger for coastal cities worldwide). It began wi