  The anomaly equation can be derived from the ultraviolet properties of
quantum field theory and should, therefore, not depend on infrared properties,
such as the presence of a thermal heat bath. There is also an infrared
explanation of anomalies which is related to fermionic zero modes. I show how
the anomaly equation can be satisfied in a high temperature plasma in spite of
the fact that all propagating fermionic excitations have a thermal mass.
