New York Times: Angel Hsu scaled the Great Firewall of China to report on U.S. Deputy Climate Envoy Jonathan Pershing’s dim sum outing. "Went to have dinner at Ding Tai Fung in #Tianjin. Guess who was there? US lead negotiator Jonathan Pershing. Can’t get away from that guy!" Hsu, who tweets by the handle @ecoangelhsu, told her 352 followers. Kartikeya Singh, who is tracking discussions on technology transfer, tweeted a bit of optimism from the U.N. talks: "#tech transfer brightest spot in the …