On April 28, 2015, the Catholic Church convened a council to discuss the religious implications of global warming. Held at the Vatican and hosted by the Vatican's Pontifical Academy of Sciences, it was attended by the Secretary-General of the United Nations, as well as national presidents, CEOs, academics, scientists, and representatives of the world's major religions. The Institute sent a delegation in an attempt to present a dissenting opinion. It held a "prebuttal" of the conference and argued that climate science does not justify papal recognition of the United Nations' Intergovernmental Panel on Climate Change.