Antonio Hill, Senior Policy Advisor on Climate Change with the environmental group Oxfam, discusses a report from Oxfam that explores how to fairly divide the responsibilities of responding to climate change and minimise risk. Hill explains why the agreement expected to arrive at the Copenhagen Climate Change Conference should be both comprehensive and fair. Also see Antonio Hill speaking from Bonn, in April 2009. And Kumi Naidoo, International Executive Director, Greenpeace speaking from Copenhagen