An activist investor's audit of policies or practices tied to timber-derived building materials and products--plus energy, water, climate change and land use--shows the top 10 publicly traded homebuilding companies addressing environment and resource conservation challenges to widely varying degree. In "A Green Recovery for America's Homebuilders? A Survey of Sustainable Practices by the Homebuilding Industry," Bethesda, Md.-based Calvert Asset Management cites KB Home, Los Angeles, and Pulte Homes, Bloomfield Hills, Mich., tops in covering the five points, each builder maintaining spots from a similar 2008 survey.
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