Electric Hand-Dryers vs. Paper Towels: Which is Better for the Environment?

From Cecil Adams of Straight Dope --

I would not say the results equal a definitive answer, only a "best guess" - which means that it could be widely off...

"Una's best guess is that standard hot-air dryers use 5 percent less energy than paper towels in the first year, and about 20 percent less over five years."

http://straightdope.com/columns/070817.html?