  We consider the thermal response of a (3+1)-dimensional theory with a chiral
anomaly on a curved space motivated by the chiral magnetic effect. We find a
new phenomenon, called the chiral heat effect, such that the thermal current is
induced transverse to a gradient of the temperature even on a flat space. This
effect is expected to be observed in QCD experiment as well as the chiral
magnetic effect. We study a similar topological effect on the spacetime with a
torsion. A holographic construction is also discussed with the D3/D7 and the
Sakai-Sugimoto models.
