Apparently, Portland, Oregon, is so into going green, that they are going to cover an entire 200 foot wall of their federal building with living vegetation and plants. The government predicts that they will save around $280,000 in energy costs per year. This 133 million dollar project also includes solar panels and is on schedule to be completed in 2013. Many people think that this is a waste of money, as this may take quite a bit of time to even out the expenses ... around 475 years. Even so, it is a good idea, and will use 60% to 65% less energy than a normal office building. Designers are also trying to find a way to irrigate the building efficiently, but to no avail so far.