Agence France Presse: French President Nicolas Sarkozy on Friday said the war in Darfur had been sparked in part by climate change, and warned global warming could lead to "dozens" more conflicts. In a speech at a major conference in Paris, Sarkozy said the conflict in Darfur resulted from "an explosive mixture" in which climate change had affected agriculture, forcing a migratory wave that had then helped to unleash war. "Climate change is already having a considerable …