By  Ayurella Horn-Muller  (Climate Central) with news segment by Amber Strong (Newsy) St. Paul’s Episcopal Key West, which is trying to spur climate action among its congregation. Credit: Ayurella Horn-Muller KEY WEST, FLA—Grounds cloaked in greenery weave around a towering ivory chapel in the heart of downtown Key West, Fla. Founded in 1832, St. Paul’s Episcopal Key West is not only the oldest Christian congregation in the area, but one of the oldest congregations of any religious tradition south of St. Augustine.  The church is on its fourth building, the first three lost to fires and a hurricane. After nearly two hundred years of its congregation working to keep it standing, Reverend Donna Mote, the newest rector at St. Paul’s, is now worried about a more subtle risk: rising seas.  “It would be a shame to preserve all these buildings, and then have people scuba diving in them in 100 years,” Mote said. St.…