GENEVA: Villagers from deeply Roman Catholic south Switzerland have for centuries offered a sacred vow to God to protect them from the advancing ice mass of the Great Aletsch glacier.

Global warming is making them want to reverse their prayers, and the Alpine faithful are seeking the permission of the pope.

Since the vow was established in 1678, the deal was simple: the citizens of the isolated mountain hamlets of Fiesch and Fieschertal would pledge to lead virtuous lives. In exchange, God would spare them from being swallowed by Europe's largest glacier as it expanded toward the valley with heavy winter snows.