Climate Summit Will Produce ‘Robust’ Accord, UN Chief Ban Says

I am reading this article, Climate Summit Will Produce 'Robust' Accord, UN Chief Ban Says, at Bloomberg's website http://www.bloomberg.com/
According to this article, the summit started yesterday in Copenhagen, Denmark.
The goal of the summit is to set a framework for a treaty to reduce emissions thought to cause global warming.
Representatives from about 190 nations are at this summit.