FLAGSTAFF — The City of Flagstaff is thrilled to announce the return of the Innovate Green Challenge (formerly known as the Innovate Waste Challenge). Now in its fifth year, this initiative invites Flagstaff entrepreneurs to showcase groundbreaking ideas that promote environmental sustainability. Participants can win up to $30,000 in cash awards for their innovative project. This partnership between the City’s Economic Development and Sustainability teams underscores Flagstaff’s commitment to creative climate action, as this Challenge seeks product or service ideas in the following categories: converting waste into marketable materials, removing or reducing carbon dioxide, or conserving water.