IAN worked with the National Park Service to develop natural resource condition assessments for Wolf Trap National Park for the Performing Arts and Prince William Forest Park. These reports use air quality, water quality, biodiversity, and landscape data to assess the current condition of the parks. The natural resources of both parks were predicted to be negatively affected by climate change. Impacts may include increasing ozone levels and particulate pollution, changing forest composition, and an increase in exotic species and forest pests and diseases. Additionally, both parks were identified as being under threat from surrounding land use, regionally poor air quality, and overpopulation of deer.