99% of the worlds scientist are not sure about global warming. Saying such a thing just paints you as an AGW zealot without a brain.

Thankfully, the scientific community in general is much more interested in getting all the data and building a picture as accurate as possible before drawing the conclusions that impose themselves from the analysis, rather than stupidly spouting a hastily-drawn one-sided conclusion taken from incomplete data.

This is why such information is important, given that our understanding of meteorology is still very much in its infancy - but I understand that the masses (and the zealots) kind of miss that point since you need to be intelligent to understand that the world is the most complex dynamic system we can possibly hope to comprehend.