TOPSHOT - This aerial photograph taken on December 22, 2021 shows the erupting Piton de la Fournaise volcano on the French Indian Ocean island of Reunion. - The Piton de la Fournaise, the volcano of Reunion, erupted for the second time of the year on December 22 at 3:30 am (12:30 am in Paris), indicates the volcanological observatory. At least three eruptive cracks have opened on the southern flank of the volcano in the enclosure (the central caldera of the volcano), volcanologists have noted. The eruption takes place in a totally uninhabited area. (Photo by Richard BOUHET / AFP)