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“She often re-wears the same items and shows how you can make the same dress look like a new outfit just by changing accessories. She even borrows clothes from her mum and sister, buys from outlet stores, and consignment shops. All these things might not immediately seem environmentally friendly but they add up to make a huge difference. It’s about looking after what you already have and getting more use of what you do buy.”

—Natalie McCreesh, TRANSFER research associate at the University of Sheffield, calling the Duchess of Cambridge (the former Kate Middleton) a “great role model” at a conscientious-consumption event at Westfield Shopping Centre in London on Tuesday.