The IPCC suggested that total global CO2 emissions be capped within 7 years, in order to prevent severe and irreversable effects. To accomplish this, the West would have to offer LARGE reductions, to counterbalance the inevitable continuing rise of emissions in the third world.
http://www.washingtonpost.com/wp-dyn/content/story/2007/11/18/ST2007111800216.html

Neither the Republicans nor the Democrats nor the various parties in Europe--except the Greens--propose such drastic action. That is, they are arguing amongst themselves about how the deck chairs should be arranged. I suppose that having the chairs piled up in a sort of pyramid or tower so that a few of us will last a few minutes longer would be better; at least, that's the position of the so-called Left in the West.