"The University’s endowment has come under increased scrutiny in recent years as student activists target various investments including those tied to the fossil fuel industry, private prison companies, and Puerto Rican debt. Fossil fuel divestment activists have been particularly fervent in their calls for Harvard to withdraw its endowment from a stake in that industry."
https://www.thecrimson.com/article/2019/9/27/harvard-endowment-returns-2019/