Global warming is no joke, but that does not mean that humor should not be encouraged. Sidney Harris is joined by twenty of his cartoonist colleagues to provide somewhat more than the promised 101 cartoons about global warming (there are no page numbers - I had to count!). They are not all funny, however. Some are sardonic comments on political figures such as Tom DeLay, Sonny Bono, Dick Cheney, Dan Quayle, and others (all of these by Harris), and some of the others are more like editorial cartoons than the ha-ha kind that we expect of Harris (no relation, unfortunately). You may need some cheering after my other Pick this month.