The switch, the company said, would help save 400,000 pounds of paper, avoid 6 million pounds of greenhouse gases and prevent 4 millions of wastewater each year.

The Dallas-based company will plant a tree for each customer, up to one million, who makes the move.

Customers can go to www.att.com/paperfree, for more information.

"At AT&T, we encourage all of our customers to make the switch to paperless billing with us this year," said Philip Bienert, vice president of att.com. "Whether they care about conserving natural resources, supporting reforestation, enjoying the convenience of reducing the amount of mail they receive each month -- or all of these things -- we´re offering them a simple way to make a difference with just a few clicks of the mouse or taps of the smart phone."

AT&T is working with the Arbor Day Foundation to plant the trees.

Contact Waste & Recycling News senior reporter Jim Johnson at 937-964-1289 or jpjohnson@crain.com