The City of Warren has planted its first micro forest as part of an effort to increase the tree canopy in the city. Warren Mayor Lori Stone says the community rallied for more greenery in the city.“Warren only had about 19% tree canopy, some of the lowest in Metro Detroit and Macomb County. And so, when I started out, we did a listening tour to really look at what our communities’ expectations were, and environmental sustainability was a prior…