Melting glaciers off Ammassalik, Greenland / Christine Zenino - Wikimedia
John Gehring is Catholic program director at Faith in Public Life, an advocacy group in Washington, and a former associate director for media relations at the U.S. Conference of Catholic Bishops. He is author of The Francis Effect: A Radical Pope’s Challenge to the American Catholic Church (Rowman & Littlefield, 2015) and a contributing editor to Commonweal.
