Sponsored by the the Healthy Building Network (HBN) and their partners, this tool seeks to define a consumer-driven vision of truly green building materials and how they should be evaluated in harmony with principles of environmental health and justice. Pharos evaluates materials across several impact categories such as energy/water usage, air quality impact, and toxicity, but also introduces new categories such as occupational safety, social justice and habitat impact that to date have not been included in any material rating system. One tool of Pharos is PharosWiki which provides users a place to research materials and chemicals and building products as well as sharing their experience and knowledge.