Sheryl Crow believes using less toilet paper will stop global warming.
The "If It Makes You Happy" singer, who spent two weeks touring the U.S. on a Stop Global Warming College Tour, is convinced one square per visit is sufficient.
Sheryl writes on her tour blog: "I propose a limitation to be put on how many squares of toilet paper can be used in any one sitting. I think we are industrious enough people to make it work with only one square per restroom visit, except, of course, on those pesky occasions where two to three could be required."
The singer - who traveled on a bio-diesel bus with environmentalist Laurie David for the tour - says people should try and do their bit to reduce their carbon footprint, no matter how small their gesture.
She said: "As we've been telling everyone, it's not about doing everything, it's about doing something. Our sole objective is not to be preaching to the converted but hopefully be bringing some people over to the side of protecting the environment and also giving kids some idea of how they can be a part of that movement."
Sheryl, 45, has also designed a detachable sleeve which is used to wipe your mouth after dining to cut down on napkin use.
She said: "I think this idea could also translate quite well to people suffering from a cold."
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