6.59 million trees would be saved each year if everyone in the U.S. stopped using paper cups.
A new approach for buying paper is addressed in Paper Calculator. The main concern is how can people save trees, reduce waste, use less water, use less energy when using paper. Paper Calculator offers a lot of information about the making of paper to supporting their cause.
Here is just some information to check out on their site:
the paper planet (blog)
Imagine an earth with no trees.