ecological

US /ˌiː.kəˈlɑː.dʒɪ.kəl/
UK /ˌiː.kəˈlɑː.dʒɪ.kəl/
"ecological" picture
1.

relating to or concerned with the relation of living organisms to one another and to their physical surroundings

:
The study focused on the ecological impact of deforestation.
They are developing new ecological models to predict climate change.
2.

not harmful to the environment

:
Many consumers prefer ecological products.
The company is committed to using ecological methods in its production.