The seas have risen. Europe is a scatter of flooded remnants, living on salvage and forgetting itself on imports. South America — spared by geography, enriched by catastrophe — is now the Republic of the Condor: Bogotá writes the speeches, Cusco blesses them, Asunción pays for both. Its chief export is a hyper-refined cocaine called Cóndor Blanca. Its chief market is a continent too poor to say no...