It has been two years since Pope Francis released his encyclical “Laudato Si’: On Care for Our Common Home,” and the response among U.S. Catholics, while generally supportive, has not been unambiguously so. Just last November, over 50 percent of white Catholics voted for Donald J. Trump, a climate change skeptic. On June 1, President Trump announced the United States would withdraw from the Paris climate agreement, an accord adopted in 2015 by a remarkable 195 of the world’s 197 countries. (Only Syria, distracted by its civil war, and Nicaragua, arguing for a stronger agreement, opposed it.) But in parts of the U.S. church the pope’s encyclical has sparked creativity and innovation with impacts not so easily set aside. One such experiment in California that the Vatican itself highlighted is the Diocese of Monterey’s advocacy of Community Choice Energy.