No, world leaders will not reach a consensus at the Copenhagen Conference on Climate Change, because there are too many countries involved on the issue, and too many countries to consider. Among the most hotly contest issue, is the question of how much the developing countries should be required to contribute, and how much should come from richer countries.
Unfortunately, the world's leaders won't reach any sort of consensus at the Copenhagen Conference on Climate Change. Plenty of debating is expected to be carried out, but the chances of any sort of resolution are highly unlikely. The world's leaders can't agree on anything, and doubters will ruint he negotiations.
No, world leaders will not reach a consensus at the Copenhagen Conference on Climate Change, because there is too much at stake politically and economically for world leaders to easily agree on the issue. Some governments are calling for massive voluntary reduction in their own economies. Something that extensive will not be entered into lightly by participating nations.
World leaders don't want to admit there is climate change. If they admit it, they'll have to do something about it. And all the rich people bank on oil. All the wars over oil would end. We would have to switch to cleaner energy. The rich don't want that. They want us to continue our oil dependence.
The world leaders will not reach a consensus at the Copenhagen Conference on Climate Change. There are too many issues that need to be reached before they will ever reach a consensus. They seem to think that it is the last hope and a decision needs to be reached before something bad happens. I think it is already too late as the climate change is already a major problem.