As an eye-catching way of drawing attention to the huge importance of the looming Copenhagen Climate Summit and the threat to God's creation, it was right on up there.
The Anglican bishop of London says in a Christmas letter that the return of religious issues to centre stage in the public sphere is welcome, but he claims it has provoked a dangerous reaction from what he calls "secular fundamentalists".
The Bishop of London, the Rt Rev Richard Chartres, has caused uproar by suggesting that sin is not a purely personal concept, that care for the planet is a basic responsibility, and that unnecessarily choosing forms of transport which harm the environment may be a ìsymptom of sinî ñ turning in on ourselves, away from neighbour and from God.