If world leaders from 198 countries can't able to draw either a framework mechanism to measure and execute developed &developing countries promise about the emission cut in a propotional manner or even at least "a political platform which in coming days may draw a possibilities of our desirable goal about emission reduction ( irrespective of which bloc__develop, G77, AOSIS) " » then it will be certainly for shortsightness of world leader ~~obviously not for the fault of scientist faternity : drawback ~lack of vision of World Politics --nor even fault of Science-Environmentalist. And to some extent this political ghetoisation is nutured by limited-unprofessional cunning commercial loby ~~whose are failed to realise : "a huge Carbon business is also existing-- like last year Arcelor Mittal won much more carbon credit rather than what they need»» in this case any one should utilise excess carbon credit by selling it to other corporations~ instead of relaxing prohibition on cut of emission.