Definicija: The total of learned behavior, attitudes, practices and knowledge that a society has with respect to maintaining or protecting its natural resources, the ecosystem and all other external conditions affecting human life.

Definicija: Celota naučenega vedenja, odnosov, navad in znanja, ki jih ima družba v odnosu do varovanja svojih naravnih virov, ekosistema in vseh drugih zunanjih dejavnikov, ki vplivajo na življenje ljudi.