Age: CHINA has no regrets over its abrasive negotiating tactics at Copenhagen, saying the ”key lesson” rich countries should take from the conference is that China cannot be pushed around. In the first detailed, post-Copenhagen interview with the Western media by a Chinese official, climate change ambassador Yu Qingtai told The Age that the summit was ”a step in the right direction”. But he repeatedly accused rich countries of ganging up on China. ”During and before …