The Center for Climate and Security thanks Tom Friedman for devoting his Sunday OpEd, titled “The Scary Hidden Stressor,” to our report “The Arab Spring and Climate Change,” and the issues and opportunities that it raises. A huge thanks also to the other authors involved: Anne-Marie Slaughter, Troy Sternberg, Jeffrey Mazo, Sarah Johnstone, Michael Werz, Max Hoffman, David Michel and Mona Yacoubian.