Are we really saving trees by going paperless? Most people think so. But if you think a little harder, it is really not about trees. It is about energy. Paper products can be effectively recycled. It costs energy to recycle and transport.
The alternative is to use electronic version (go paperless). However, that some times means you need to turn on your computer for several hours to stare at a few pages of documents. So what about the energy needed to run the computer? Maybe it is more than the energy needed to recycle a few pages of paper.