The Duchess of Cambridge was the image of Princess Diana today when she and Prince William arrived in northern Pakistan to visit the Himalayan foothills on the second full day of their tour. William and Kate donned traditional Pakistani outfits as they stepped out among the Hindu Kush mountains in the Chitral district of Khyber Pakhtunkhwa province. The couple are following in Diana’s footsteps by visiting the same region she did on her 1991 trip. They were presented with a book commemorating her time in the area 28 years ago. The Cambridges hope to highlight the effects of climate change by witnessing one of the glaciers melting for themselves. The Duchess of Cambridge (cente left) was the image of Princess Diana today (pictured in 1991 right) when she and Prince William arrived in northern Pakistan to visit the Himalayan foothills on the second day of their tour The Duke used a speech at the historic Pakistan Monument yesterday to draw attention to ‘spectacular’ glaciers melting in the area. He told a reception in Islamabad last night: ‘Tomorrow we will be seeing some of these impacts first hand and meeting some of the communities adjusting to the new realities and new…