lähenemisviis, mis hõlmab kõiki etappe materjalide ja kütuste keskkonnast eraldamise vahel kuni punktini, kus kõik materjalid keskkonda tagasi suunatakse
an approach involving all steps between extracting materials and fuels from the environment until the point where all materials are returned to the environment
Life cycle studies can be performed for various scopes: cradle to gate (raw materials until factory gate), gate to gate (only focusing on the manufacturing processes) or cradle to grave (raw materials until disposal).
