It's not enough to bash in heads, you have to bash in minds
            

Hockey Stick, XKDC Style

Notice the change at the bottom of the graph? Anyway you look at it that sudden change is alarming.

Earth Temperature Timeline
Click to embiggen
—via XKCD

It is worth noting that, nothing presented here is new, but XKCD author Randall Munroe is a master in making complex topics and difficult to grasp issues of scale easily approachable.

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