The document provides information on sustainable communities in the USA, focusing on climate change and energy efficiency initiatives. It discusses:
1) Rankings of US cities based on sustainability and green building measures, with Portland, OR, San Francisco, CA, and Seattle, WA ranking highly.
2) The emergence of the sustainable communities movement in the US during the 1990s in response to environmental, economic, and social issues. Key milestones and pillars of sustainable communities are outlined.
3) Climate change and smart growth have become leading sustainability issues among US cities, and many local communities are taking action on climate change in the absence of federal leadership.