HALDEN, NORWAY - AUGUST 22: Crown Princess Mette-Marit of Norway takes part in Climate Pilgrimage on August 22, 2015 in Halden, Norway. (Photo by Ragnar Singsaas/WireImage)
HALDEN, NORWAY - AUGUST 22: Crown Princess Mette-Marit of Norway takes part in Climate Pilgrimage on August 22, 2015 in Halden, Norway. (Photo by Ragnar Singsaas/WireImage)