Book excerpt: The legal and economic landscape for building and development have fundamentally been altered by the country's major environmental problems - climate change, deforestation, loss of biodiversity, ozone depletion, pollution, and unsustainable natural resource consumption rates. The editors provide practical information for lawyers to assist their clients in fully understanding green building and sustainable development concepts so they can operate successfully in the evolving economic and regulatory environment while minimizing the potential cost penalty of business-as-usual practices.