Dr. Chen recently visited Taiwan to attend the Cross-Strait Environmental Summit. He visited many places from his youth, including the Ambassador hotel, his high school and the Palace Museum in Taipei. There is only one building left from when Dr. Chen attended in 1960. He attended both middle and high school there from 1957 to 1963; now it is just a high school. There are very few landmarks in Taipei that Dr. Chen and his wife recognized, although all the street names are familiar. Dr. Chen also attended the Cross-Strait Environmental Summit. The two-day summit in Taipei attracted about 150 environmental experts from Taiwan, China and the U.S., who discussed air pollution, waste management and the potential for environmental cooperation across the Taiwan Strait, among other topics.