Congregations in 15 states are joining forces this Sunday to belt out the clean-energy gospel in the launch of a national “What Would Jesus Drive?” campaign. Reverend Jim Ball, who directs the Evangelical Environmental Network, said: “Jesus wants his followers to drive the least-polluting, most efficient vehicle that truly meets their needs — though first he might look at other ways to get around. … He’d definitely be in favor of us taking public transportation.” His organization plans to run ads on Christian radio stations and cable TV asking consumers and automakers to wake up and smell the emissions.