The Pope is not alone in his call for climate action. Islamic leaders have called on the world’s 1.6 billion Muslims to play an active role in combatting climate change. During an Islamic Climate Change Symposium in Istanbul this week, they issued a declaration, calling on well-off governments and oil-producing states—include some OPEC nations where Islam is the state religion—to lead the way in “phasing out their greenhouse gas emissions as early as possible and no later than the middle of the century.” Islam is a very decentralized religion, with no central authority, so it is promising that 60 leaders from 20 different countries are now in agreement on the road ahead. “Excessive pollution from fossil fuels,” they write, “threatens to destroy the gifts bestowed on us by God, whom we know as Allah.”