Rock singer Sheryl Crow has joined the global-warming nags, touring the U.S. on a biodiesel-powered bus with environmental activist Laurie David to spread the good word on college campuses.

Rock singer Sheryl Crow has joined the global-warming nags, touring the U.S. on a biodiesel-powered bus with environmental activist Laurie David to spread the good word on college campuses. What suggestions does Miss Crow have for our nation's students? How might they, to use her own words, "become a part of the solution to global warming"? Well, they might be more sparing in their use of toilet paper. In fact, Crow seems to think that legislative action is called for in this area: "I propose a limitation be put on how many squares of toilet paper can be used in any one sitting." She suggests using only one square per visit. Goodness! We know, of course, that the Nanny State is advancing on all fronts, but we did not think it would advance on all rears, too-taking over one of Nanny's more disagreeable tasks. And only one square? Even British army recruits were traditionally allowed three: "One up, one down, and one to put a shine on it."