Warm Glow Effect

The positive, intrinsic emotional experience is involved in both the antecedent and outcome of engaging in prosocial and proenvironmental behaviours. The warm glow effect increases the probability of engaging in future prosocial behaviour.

Reference:

Hartmann, P., Eisend, M., Apaolaza, V., & D'Souza, C. (2017). Warm glow vs. altruistic values: How important is intrinsic emotional reward in proenvironmental behavior? Journal of Environmental Psychology, 52, 43-55. https://doi.org/10.1016/j.jenvp.2017.05.006