Environmentalism: So global-warming alarmists now want to limit our use of toilet paper. What's next, one-room shacks with bamboo fences? Don't laugh. That's also on their list of recommendations. Singer Sheryl Crow says she's spent most of her save-the-planet tour of campuses "trying to come up with easy ways for us all to become a part of the solution to global warming." Eureka! She's found a really practical idea. "I propose a limitation be put on how many squares of toilet paper can be used in any one sitting," Crow said.