Only about 22% of Columbus’ land is made up by tree cover, which is lower than many of its national peers. Because of this, the city is coming up with a plan to plant millions of trees in the coming years, beginning potentially next year with an implementation plan in place. You can view the plan, timeline, tree canopy statistics and neighborhood maps at the following link: Forestry Plan
While certainly not Ohio or Columbus specific, the link allows you to zoom to any area on the planet to determine how forests have changed in the last 12-13 years. The map is so detailed, that it shows the loss of trees at the Scioto Riverfront when they were removed to rebuild Bicentennial Park as part of the Scioto Mile.