In commemoration of the fifth anniversary of the national do not call registry, ForestEthics has launched a new project to reduce paper waste called Do Not Mail. The goal of the campaign is to get Congress to pass a Do Not Mail registry law similar to the Do Not Call list.

Sadly, junk mail distributed in the United States currently accounts for 30% of all the mail delivered in the world, though 44% of it goes to landfills unopened. That's a lot of wasted trees.

A few notable names who have already signed onto the project are Adrian Grenier, Darryl Hannah, and Alicia Silverstone, among others. It's a project that almost everyone can agree on, if the success of sites like GreenDimes are any indication.

If you want to join them, sign the petition and then let your friends and family know about the project. Then use their online tool to opt-out of junk mail.