The singer and environmental activist teamed up with environmental activist Laurie David, recently touring the United States on a bio-diesel bus to raise awareness to climate changes and the effects on the environment.
"I propose a limitation be put on how many squares of toilet paper can be used in any one sitting. One square of toilet paper per toilet use." Sure, it has sent up jokes from Jay Leno to Jon Stewart, but if you think about all the waste (no pun intended) with over-use of toilet tissue, we could be saving a lot of trees. Sheryl also said, "Paper napkins represent the height of wastefulness." She suggests using cloth napkins that can be washed and reused or even your sleeve.