Singer Sheryl Crow wants global restrictions on using toilet paper in an attempt to save the environment. Crow, who is touring American colleges to raise awareness about global warming, has told students to only use "one square per restroom visit".

She says, "I have spent the better part of this tour trying to come up with easy ways for us all to become a part of the solution to global warming. Although my ideas are in the earliest stages of development, they are, in my mind, worth investigating.

"I propose a limitation be put on how many squares of toilet paper can be used in any one sitting."

The tour ended on Sunday at the George Washington University in Washington DC, where Crow performed with Tim McGraw, Faith Hill and Carole King.

- Sheryl Crow Pictures

(This news article provided by World Entertainment News Network)