From a few days ago... The Examiner has a piece on "Saving the Planet While Playing Games", centered on how the Nationals stadium is going to attempt to earn LEED certification, "which means it has to accumulate at least 26 points on the Leadership in Energy and Environmental Design scorecard compiled by the U.S. Green Building Council." Quoting: "During a recent tour of the Nationals' construction site, project manager Naeemi beamed about his five sand filters - huge underground bunkers that will purify water from the ballpark before it trickles into the troubled Anacostia. The ballpark also will have low-flow plumbing fixtures that will save an estimated 3.6 million gallons of water per year. The construction materials will have a minimum of 10 percent recycled content. An education program will encourage fans to recycle their trash. High-efficiency field lighting will use roughly 21 percent less energy than the lights at a typical ballpark. A subway station is about a block away, which means fewer people will drive to the games. There are plans to plant vegetation on a portion of the roof to keep it cooler. And it's all affordable. The green upgrades account for less than 1 percent of the $611 million ballpark budget."