Swedish Royals Attend Stockholm Environmental Institute's 25th Anniversary Celebrations [Getty Images]

STOCKHOLM, SWEDEN - OCTOBER 22: King Carl Gustaf of Sweden (L), Johan Kuylenstierna, Executive Director SEI (L2), Crown Princess Victoria of Sweden (L3) and Andreas Carlgren and vice Chair of SEI Board (R) attend Stockholm Environmental Institute's 25th Anniversary Celebrations on October 22, 2014 in Stockholm, Sweden. (Photo by Anna Lu Lundholm/Getty Images)

Getty Images Entertainment Anna Lu Lundholm