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