Rather than a noisy time series, we get a rather elegant view of an unmistakable trend. It's the same information presented in a more cognitively accessible fashion. The accompanying story is here.
Rather detracting from the value of the image is the fact that the vertical extent of the colored bars is not explained in any detail. It "feels like" some sort of uncertainty measure (older years indeed do have wider bars) but the source of the data and the analysis represented by the bars should be explained somewhere accessible from the page. It would be dramatcially more useful that way.
That said, the image itself is a very nice illustration of Tufte-esque principles, and it makes the actual situation (right, the actual warming trend) much more cognitively accessible than does the usual time series.
Update:Per Hank's suggestion in the comments, here is a tweaked version optimized for the most common form of color blindness: