Every now and then, I'll pick up a copy of GOOD magazine. More frequently, I look at its website, which has tons of good blogs.
On one of their blogs, called The New Ideal, Ben Jervey posted a series of images by Paul Rademacher, a Google Earth engineer, that convey the scale of the oil spill in the Gulf of Mexico better than anything else, I think.
The data is a little bit old, since the size of the spill continues to grow. But you'll get the picture. The affected area is as big as New York City, a lot of New Jersey, and a huge chunk of Long Island, for instance. It would cover all of the San Francisco, Oakland, and the peninsula.
Want to see how big it is in comparison to where you live? Click here.