Americans may be using less toilet paper, if Sheryl Crow has her way.

The singer, who is crossing the country on a biodiesel bus with producer Laurie David, proposes limiting toilet paper use as one solution to global warming, according to a Washington Post report.

"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," she wrote April 19 on the Biodiesel Bus blog, according to a report by the Washington Post. "Although my ideas are in the earliest stages of development, they are, in my mind, worth investigating."

Her toilet paper manifesto would limit how many squares of toilet paper Americans use in a sitting.

Click here to read the Washington Post report.

"Now, I don't want to rob any law-abiding American of his or her God-given rights, but I think we are an industrious enough people that we can make it work with only one square per restroom visit, except, of course, on those pesky occasions where 2 to 3 could be required," she wrote.

Crow also floated the idea of a removable "dining sleeve" that could replace the use of paper napkins.