Randall Munroe is a national treasure for many reasons, but his latest XKCD comic is a brilliant example of why (as well as an example of stupendously awesome graphing). Bad Astronomy blog at Slate explains in more detail, but to keep it short, I’ll say that this is an infographic of Tuftian perfection. Read it in detail for the full effect.

earth_temperature_timeline

Earth Temperature Timeline = Genius