Sustainable living is about choosing to live in a manner that respects and nurtures the diversity of life, while appreciating and wisely using the wealth of natural resources on this planet. As part of this commitment, DuPage Unitarian Universalist church was accredited as a Green Sanctuary by the Unitarian Universalist Association in March 2009.

More recently, in 2020, the congregation adopted a statement of conscience noting our ties to and responsibility for maintaining our environment:

We understand we are part of the Earth, not apart from it. Our seventh principle calls us to address the dire threats of climate change, species extinction and rapid environmental degradation. Let us renew our commitment to live more sustainably and protect our planet and all of its creatures.

In addition, the church earned an Earth Flag from DuPage County and SCARCE (School and Community Assistance for Recycling and Composting Education) in June 2013. And in 2016, we earned an Adopt-a-Stream designation for cleanup along the DuPage River. We continue our efforts to live in a manner consistent with the seventh principle of Unitarian Universalism: Respect for the interdependent web of all existence of which we are all a part.