Well the trend has so far been that countries increase their emissions generally and not the reverse. Especially with emerging economies like China and India.
A lot of Swedish politicians claims that Sweden has lowered it's emissions and while that is true we also outsourced a lot of production and increased our consumption rendering our emissions actually higher when you count that in.
This is a big concern of mine. One of the grand results of local environmental regulation plus globalization has been to export pollution from first world nations to third world nations.
Pollution (at least Carbon pollution) is a global issue, and tackling it only at the local level has proven to be ineffective. It's a shame that it is politically impossible for the UN to make its own version of the EPA--complete with an enforcement arm that has teeth. Without it dirty manufacturers simply go where the pollution laws are least stringent (or at least poorly enforced) and continue to kill us all slowly.
A lot of Swedish politicians claims that Sweden has lowered it's emissions and while that is true we also outsourced a lot of production and increased our consumption rendering our emissions actually higher when you count that in.