8.30/10 2011-07-08 90 minutes.HDStudy the rebirth of nature that followed the 1980 eruption of Mount St. Helens, and visit Indonesia to witness the world's most sulfuric volcano. Yann Arthus-Bertrand also travels to Italy, home to the largest number of active volcanoes in Europe, to discuss the possible results of an eruption.An: 2011Studio: France 2, France 3Pays: France