Today’s Solutions: December 19, 2025

Few amenities better reveal the overall vigor of a city than its canopy: the mix of trees that line streets, envelop parks, and shade homes. A good canopy can reduce the urban heat island, and instill true health and wellness to a community.

Yet despite those benefits, America’s metropolitan cover is shrinking. Data from the United States Forest Service shows a decrease of 36 million urban trees between 2009 and 2014, or 175,000 acres each year. Trunks are losing actual ground to the constructed infrastructure of cities—sidewalks, buildings, and parking lots—which is rising by more than 167,000 acres per year. 

Baltimore, despite its reputation as a gritty port town, runs counter to the trend. Its forest is growing by upwards of 5,000 new trees per year, largely in the dilapidated eastern and western neighborhoods that have become an icon of the bayside burg.

Over the past four decades, by enlisting data and an active cadre of volunteers like DeSantis, community groups, and nonprofits, Charm City has become a standard-bearer for urban reforestation, and a model for what’s possible across the nation. Take a look here to see the brilliant story behind Baltimore’s ever-growing urban forest.

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