Millie has worked on international climate education and policy projects with the WWF, ClimateScience, ClimaTalk and Cambridge Zero. As a student at the University of Cambridge, she led an award-winning curriculum reform project. She represented youth voices at COP28 as a Young European Leadership Delegate and reported on negotiations for ClimaTalk. In her current role at Cambridge Zero, she helped bring ActNowFilm to COP29 and served on the Steering Committee for the COP29 Children and Youth Pavilion. As a member of Youth UNESCO Climate Action Network she supports the Greening Education Partnership.