Coca-Cola's Green Billboard Made of Plants That Absorb Air Pollution

Advertising doesn't get much greener than this: Coca-Cola and the World Wildlife Fund have unveiled a new 60-by-60-foot billboard in the Philippines that's covered in Fukien tea plants, which absorb air pollution. Each plant can absorb up to 13 pounds of carbon dioxide a year. "This billboard helps alleviate air pollution within its proximate areas as it can absorb a total of 46,800 pounds of carbon dioxide from the atmosphere, on estimate," says botanist Anthony Gao.