4 ms·Every tonne of paper is a tonne of carbon that's not in the atmosphere right now.by lwat 14y agoEvery tonne of paper is a tonne of carbon that's not in the atmosphere right now.ShawnBird 14y agoCellulose is only 40% carbon.Evbn 14y agoIt is very easy to return that carbon to the atmosphere if needed. So easy, a caveman could do it.