Iskani niz je bil najden v PREVODIH:
Erhaltung der Umwelt
en environmental conservation, environmental maintenance, environmental preservation
Umwelterhaltung
en environmental conservation, environmental maintenance, environmental preservation, environmental sustainability
Umweltschutz
en care for the environment, conservation of the environment, ecology, environment protection, environment, environmental conservation, environmental control, environmental preservation, environmental protection, pollution control, protection against environmental influences, protection of the environment, protection