Interesting article on LEED certification: http://www.usatoday.com/story/news/nation/2012/10/24/green-building-leed-certification/1650517/
It’s not so easy to come up with a green standard – lots of competing goals and caveats to encourage enough buy-in to get organizations to use the standard. Unfortunately, many government organizations make assumptions about LEED without looking at the shortcomings because it's simple to glom onto. Like every other system out there, lots of people will game it. How do you set up enough post-certification validation checks without dragging the whole system down? LEED has caused movement in the right direction overall, but maybe not much.
It's not simple being "green." Or telling if something is really "green." FTC tries to offer guidance, but there's still plenty of room for mischief.