1 paper = 7 trees O_O"

That's the wrong fact actually. Forgive my stupidity, HA!

The truth is
- 1 ream of copy paper (500 sheets) uses 6% of a tree
- Nearly 17 reams of copy paper uses 1 tree
- A 16-page brochure (5,000 copies) uses almost 5 trees




I'm printing lecture notes now, with full of guiltiness.
Why can't my printer prints both sides... Or maybe I'm just too noob to use it...
I don't know, I feel so bad right now, for wasting so many papers, am I going to continue wasting like this throughout the year... Oh no I can't forgive myself   =/

Help! Save me :'(