Mitigating Climate Change: Who Pays? Who Benefits?

The article I read was Mitigating Climate Change: Who Pays? Who Benefits? The article states that the international climate change affects the west and the United States. This is because these two regions have shown to be the primary responsibility for the carbon dioxide emissions.  Because we cause most of these problems and the increase in the gases these areas should be the ones to control the emissions. The article states that the world would benefit as a whole if the gases were cleaned up, but the cost would be across the entire world. The different nations would be differently affected because each nation would have to pay a certain amount to reduce the gases.