2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/190587I review the implications of the axial anomaly in a thermal bath. I assume that the Adler-Bardeen theorem applies at nonzero temperature, so that the divergence of the axial current remains is independent of temperature. Nevertheless, I argue that while the anomaly doesn't change with temperature, ``anomalous'' mesonic couplings do. This is verified by explicit calculations in a low temperature expansion, and near the chiral phase transition.11 pages, PTPTeX, to appear in the Proceedings of YKIS '97High Energy Physics - Phenomenologytext