This is the 12110th most frequent German word.
umweltzerstörung
Environmental destruction.
This is a subject noun referring to the major issue being discussed.
Die Umweltzerstörung ist eines der größten Probleme unserer Zeit.
Environmental destruction is one of the biggest problems of our time.
Here, the word is used as a direct object receiving the action of fighting.
Regierungen weltweit arbeiten daran, die Umweltzerstörung zu bekämpfen.
Governments worldwide are working to combat environmental destruction.
This context shows the word as part of a prepositional phrase indicating causality.