Cassandra Carmichael, director of the National Council of Churches Washington office, (left) and the Rev. Margaret Bullitt-Jonas, priest associate of Grace Church, Amherst, Massachusetts and co-chair of Religious Witness for the Earth join in singing “This Little Light of Mine” led by the Rev. Henrik Grape, coordinator of the Church of Sweden’s environmental network and a member of the climate group of Christian Council of Sweden. Photo: Mary Frances Schjonberg/Episcopal News Service