Time for a comic, xkcd.com. XKCD is known for a mix of, “Romance, sarcasm, math, and language”; and is also known for finding entertaining ways to display facts and data. His graph of global warming addresses the response, “The climate has changed before.” by showing how climate has changed before, particularly relative to the extent and speed of what’s happening now. There’s even a part about Washington State (where I live). Enjoy.
(Click on the graph for the link and a laugh, or at least a smile. Go to the source for the quirky mouse-over commentary.)