Willi Dansgaard (1922-2011), Danish climatologist Scott Denning, American atmospheric scientist and professor at Colorado State University Andrew Dessler, American atmospheric scientist and professor at Texas A&M University P. C. S. Devara, Indian climatologist and professor at Amity University, Gurgaon Robert E. Dickinson. American climatologist, professor at University of Texas at Austin Mark Dyurgerov (died 2009), Russian-American glaciologist