I was very saddened to learn of the passing of Michael Humphreys. His pioneering work on adaptive thermal comfort has profoundly shaped the field, bringing a human-centred perspective that continues to guide both research and practice today.As a young researcher working on thermal comfort, I have greatly benefited from his contributions, which remain a key reference in my work.

My thoughts are with his family, loved ones, and colleagues. He leaves behind an invaluable scientific and human legacy that will continue to inspire many of us.