Grist: Corporations that stand to lose the most from a widespread shift toward genuine green building practices are doing what they can to preserve the status quo. For years they`ve been smearing LEED, or Leadership in Energy & Environmental Design, the nations preeminent green building certification program. They have lobbied lawmakers to ban the use of LEED certifications for government buildings -- and they have succeeded in some states, such as in Maine. And they`ve cooked up their own green-building...