taipei taiwan say environment minister prevent attend annual u.n. climate meet even credentials non-governmental participant due pressure china represent late case self-ruled taiwan able take part international event opposition china object island claim one-china stand accord anything akin status independent state environmental protection agency minister lee ying-yuan hop attend u.n. climate change meet bonn germany island foreign ministry say statement late monday due china interventions environmental protection minister lee unable enter unfccc meet say refer u.n. framework convention climate change relations beijing taipei nosedive since tsai ing-wen elect island president last year china believe want formal independence taiwan red line beijing tsai say want maintain peace china defend taiwan democracy security taiwan foreign ministry spokesman andrew h.c. lee tell news conference taipei president believe climate change important issue island would endeavor take part international meet address beijing chinese foreign ministry spokesman geng shuang say china position clear matter taiwan participate international events china position clear must comply one china principle geng tell reporters without elaborate organizers event bonn immediately available comment since 2009 taiwan announce intention participate u.n. climate change meet government help officials get credentials talk non-governmental observers attend international meet taiwan participate last year lower-level delegation taiwan member unite nations lose seat hold china name 1971 communist government beijing assume position previous taiwan administration china-friendly president ying-jeou beijing let taiwan attend u.n.-related events include get observer access annual u.n. world health assembly meet geneva year taiwan shut health assembly island also say due china coercion threats china previously blame taiwan exclusion international events say due taipei refusal accept one china principle nationalist force defeat communists flee taiwan end chinese civil war 1949. taiwan say shut u.n. climate talk due china pressure