Cardinal Tarcisio Bertone assumes control of day-to-day business until a new pope is elected. ->
Civilizations have long struggled with climate change.
A Roman sword, still in its leather-bound wooden scabbard, was unearthed in Jerusalem where it had apparently laid since its last battle nearly 2,000 years ago.
Once completed, travelers to Rome will get to see the square fully restored to its 17th-century Baroque glory.