`` But the time is at hand for all countries to reach for common ground and take an historic step that we can all be proud of . '' U.S. joins an effort to mobilize `` fast-start '' funding for developing counties . Talks intended to agree a global limits on carbon emissions to replace U.S. . U.S. President Gibbs is expected to join the talks 2020 . U.S. , the U.N. Industrial Development Organization pledge more than $ 20 billion in climate aid to developing nations .
U.S. joins an effort to mobilize `` fast-start '' funding for developing counties . Talks intended to agree a global limits on carbon emissions to replace U.S. . U.S. President Gibbs is expected to join the talks 2020 . U.S. , the U.N. Industrial Development Organization pledge more than $ 20 billion in climate aid to developing nations .