The document summarizes a presentation given by Jack Spengler on re-envisioning health and sustainability. It discusses the mission of the Center for Health and the Global Environment at Harvard to improve health through research, engagement, and considering impacts on people, places, and the planet. It also outlines concepts for measuring sustainability through factors like materials, human capital, natural capital, social capital and knowledge capital. The presentation proposes that sustainable development is inclusive human well-being that does not decline across generations.