Sydney Morning Herald: THE urgent need to act on climate change means the world’s major economies cannot wait for a global agreement to be struck through the United Nations, the economist and Reserve Bank board member, Warwick McKibbin, said. In a paper released by the Lowy Institute, Professor McKibbin said after last year’s failed Copenhagen summit the world’s biggest carbon polluters, such as Australia, should agree to adopt similar carbon prices which would rise over time. An emissions trading …