Iain Stewart

Iain Simpson Stewart (born 1964) is a Scottish geologist who is currently Jordan-UK El Hassan bin Talal Research Chair in Sustainability at the Royal Scientific Society in Jordan. He is a UNESCO Chair in Geoscience and Society and formerly a member of the Scientific Board of UNESCO's International Geoscience Programme. Described as geology's "rock star", Stewart is best known to the public as the presenter of a number of science programmes for the BBC, notably the BAFTA nominated Earth: The Power of the Planet (2007).

He is a Fellow of the Geological Society of London, the Royal Society of Edinburgh, and President of the Royal Scottish Geographical Society. Until 2021 he was Director of the Sustainable Earth Institute at University of Plymouth and remains a of Professor of Geoscience Communication there, in addition to his role as co-Director of the Centre for Climate Change and Sustainability at Ashoka University.