NorthStar was the subject of a letter exchange on the campus of Swarthmore College. The first letter, by Swarthmore Mountain Justice — a student fossil-fuel divestment activist group at Swarthmore College, relates to NorthStar’s white paper  “The Cost of Fossil Fuel Divestment Has Been Greatly Exaggerated.” The response letter from the Swarthmore Independent calls NorthStar “investors [with] their heads in the clouds.”