Introduction : environmental sustainability at historic sites and museums -- Value : how environmental sustainability strengthens historic sites and -- Starting to go green: making choices; facilitating change -- Energy choices -- Environmental sustainability in collections care -- Rediscovering connections : buildings, land & water, plants & -- Sharing these connections: historic interpretation and community -- Materials : what comes; what goes; what gets transformed -- Sustainability policies and planning -- Creating our future -- Conclusion : sustainable stewardship : what business-as-usual should look like.