In July 2020, Kianni was named by United Nations Secretary-General António Guterres to his new Youth Advisory Group on Climate Change, a group of seven young climate leaders to advise him on action for the climate crisis.[14][15] Kianni was the youngest in the group, which ranged from 18 to 28 years old.[16] She was the only one representing the United States, and also the only representing the Middle East and Iran.[4][18]