Sure, we've seen plenty of cool billboard features over the years, from facial recognition to interactive Pong games, but few have managed the dual feat of promoting a popular soft drink and making the world a slightly greener place. All of that fuzzy area you see surrounding the silhouette of the Coke bottle in the above 60 by 60 foot billboard is made up of a number of Fukien tea plants, each of which can soak up around 13 pounds
