Global Cooling?

So it seems like every year (at least for 2006, 2007, 2008, and 2009), there's been someone talking about global cooling. Based on the most recent climate change data, it appears that the world may actually be cooling (or, for the sake of being cautious, it appears that the world cooled in 2008).

So I know I shouldn't be, but I'm confused about how this mounting pile evidence was somehow trampled by the global warming bandwagon. Can they take back Al Gore's Nobel Peace Prize now? Please? It'd be a shame if it was awarded for nothing.