THe AGW proponents make all sort of claims about unusal weather being the result of global warming, like more hurricanse, more cyclones, more droughts, more floods, ect. These claims are mostly deceptive, and do not stand scrutiny. Historically weather has been less extreme during warming periods than during cooling periods, so it is not surprising that there was not much extreme weather during the latter part of the twentieth century. Here is a discussion of a report that shows that this was the case, though the report doesn't exactly say that.

http://sciencepolicy.colorado.edu/prometheus/archives/climate_change/001462what_the_ccsp_extrem.html

Many people outside of the AGW cabal think that the earth is entering a cooling phase. Scientists in India, China, and Russia subscribe to that view, maybe because it is the political position of the leaders of those countries. Scientists in the US, EU, and the rest of the west may embrace AGW because of the politics in their respective countries. If cooling happens, it is usually worse for the world than warming. There is more extreme weather, more crop failure thus more hunger, and more need for energy. Here is a paper discussing this.

http://www.rightsidenews.com/200806181211/global-warming/as-the-earth-cools-what-does-it-mean-for-the-energy-industry.html