He's a senior researcher at the National Snow and Ice Data Center and the University of Colorado in Boulder, Colo. 他是美国国家冰雪资料中心和科罗拉多大学的高级研究员。
Before joining the Asia Society, he was assistant professor of government at Cornell University and an advanced research fellow at Harvard University. 在加入亚洲协会之前，他曾任康奈尔大学政府研究助理教授和哈佛大学高级研究员。
