environment [environments](natural world or ecosystem) noun [UK: ɪn.ˈvaɪə.rən.mənt] [US: ən.ˈvaɪ.rən.mənt]
ecosistemanoun {m}
ecosystem [ecosystems](system of an ecological community and its environment) noun [UK: ˈiːk.əʊ.sɪ.stəm] [US: ˈiːko.ʊ.sɪ.stəm]Ecosystems are degrading rapidly all around the Earth. = Los ecosistemas se están degradando en todo el mundo.