The discussion over capping carbon emissions does rather lend itself to Great Power rivalries, and therefore economic nationalism, since it raises the possibility of enforcing an effective limit on the industrial ouput of rival economies, as I argue here:
James Heartfield Eco-imperialism at the Bali summit? After Bali: Are Western powers offsetting their industrial growth by blackmailing poorer countries to foreswear development? One writer thinks so. http://www.spiked-online.com/index.php/site/article/4196/