Regarding who should sign up to the Kyoto Protocol, it's all pretty irrelevant isn't it? It simply just does not work, there is not a single country that has signed up to it going to make any of the targets set and promised, because technology currently in use, national interests and growth simply will not allow the reductions required to make the targets set. For all of you in the United States of America, your President told you all of this about six years ago. The way forward outlined by the US was the correct road to follow - reduce emmissions by improved technology and alternative energy - then sell that to the emerging industrial powers of Brazil, India and China.