T-Mobile has announced that they have partnered up with the Arbor Day Foundation to plant at least 150,000 trees. T-Mobile is doing this on behalf of their customers that sign up for paperless billing from now until Friday, the 25th.

If more than 150,000 of T-Mobile’s customers subscribe to the paperless billing system, T-Mobile will have a tree planted to match every additional entry. The trees will be planted in areas like Southern California, and New Orleans, where trees have a hard time growing on their own.

To enroll, all you have to do is visit my.t-mobile.com/plantatree. This will sign you up for paperless billing. If you already use paperless billing, you can still visit that site, and just hit the confirm button. T-Mobile also announced that you can help in another way too, by signing up for Easy Pay. This will have your monthly bill automatically charged to your bank account each month.