With a population of more than 8.3 million people, New York City has more than 28,000 residents per square mile. The city sits at the confluence of three ecoregions, and as a result is home to an incredible diversity of flora and fauna. Within this densely populated area are also more than 30,000 acres of parkland and over 7,000 acres are managed as natural area forest. NYC’s forests provide valuable ecological and recreational opportunities to the city’s residents and visitors, and are a haven for permanent and migratory wildlife. NYC’s forests vary in size and composition, and exist in isolated pockets throughout the city with the most common forest communities dominated by oak/tulip and oak/hickory associations. Invasive species removal and forest restoration through native species planting and promotion occur to conserve these and healthy urban forests. Incorporating climate science into these efforts is a goal of the Natural Areas Conservancy and New York City Department of Parks and Recreation.