Times Square has his first "green" billboard.

When we think in Times Square in New York, we don't think in clean energy sources for sure with so many cars, people, lights, sounds and so much confusion.

But the first steps to improve that situation are happening, thats what Ricoh (huge Japanese creator of Office Equipment) have done.

The new billboard of Ricoh in Times Square works exclusively with wind and solar power (with 64 solar panels and 16 turbines), without even having an emergency power gerator, so if there is one day at night that is no wind the billboard goes off without publicizing the trademark.
That doesn't worry Ricoh, beacause they think that it may give a good example to the people.

Sources: http://www.nytimes.com/2008/11/15/nyregion/15billboard.html