Agence France-Presse: The draft agreement on climate change reached in Copenhagen is "comprehensive and realistic," Canadian Prime Minister Stephen Harper said in a statement. Now, he added, "all countries must commit to taking concrete action to address climate change as part of a new treaty — actions which are measurable, verifiable and reportable." "Canada is prepared to contribute our fair share of financial support, particularly to the poorest and most vulnerable nations," Harper said, adding …