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Hrh Crown Princess Mary Of Denmark Arrives At The Danish Ambassador'S Residence In London For The Official Announcement Of The Uk Participants In An International Youth Cop15-Conference Bright Green Youth In S~┬┐Nderborg, Denmark. (Photo by Antony Jones/UK Press via Getty Images)

Hrh Crown Princess Mary Of Denmark Arrives At The Danish Ambassador'S Residence In London For The Official Announcement Of The Uk Participants In An International Youth Cop15-Conference Bright Green Youth In S~┬┐Nderborg, Denmark. (Photo by Antony Jones/UK Press via Getty Images)