By Oliver Bullough and Robin Pomeroy MOSCOW/BRUSSELS (Reuters) - Russia dealt a new blow to a U.N. plan to curb global warming (news - web sites) Tuesday as even European Union (news - web sites) supporters of the landmark pact admitted backsliding... http://story.news.yahoo.com/news?tm...e=1&u=/nm/20031202/sc_nm/environment_kyoto_dc