HALDEN, NORWAY - AUGUST 22: Crown Princess Victoria of Sweden and Crown Princess Mette-Marit of Norway take part in Climate Pilgrimage on August 22, 2015 in Halden, Norway. (Photo by Ragnar Singsaas/Getty Images)
HALDEN, NORWAY - AUGUST 22: Crown Princess Victoria of Sweden and Crown Princess Mette-Marit of Norway take part in Climate Pilgrimage on August 22, 2015 in Halden, Norway. (Photo by Ragnar Singsaas/Getty Images)