Elite universities in the United States — which conduct important climate research — are raking in millions from fossil fuel interests, potentially creating conflicts of interest.

This is according to a collection of new reports compiled by student organizers and released by the student-led Campus Climate Network, as The Guardian reported.

“Universities globally are often caught in a web of financial and research dependencies with the fossil fuel sector. These ties not only conflict with the ethics of academic independence but also hinder the progress of genuine climate research,” Campus Climate Network said on its website.

One institution, Princeton University, seems to have actually owned an oil company — Petrotiger, named after its mascot — earning it millions of dollars, reported The Guardian.

Six analyses put together by students at each institution focused on Princeton,