Pope Francis is making a grievous mistake entering the debate on fossil fuels causing catastrophic global warming due to live-giving combustion gases carbon dioxide. History has not forgotten the Church’s 17th century involvement with science caused the Inquisition in 1633 to force Galileo Galilei to recant the Sun was the center of our universe instead of the Earth. Galileo was held in house arrest until his death in 1642. The consequences of the Church’s actions may have set astronomy back a few years; but did not lead to calamitous future for the planet. In 1992 the Vatican formally announced its mistake in condemning Galileo.