ecological
US /ˌiː.kəˈlɑː.dʒɪ.kəl/
UK /ˌiː.kəˈlɑː.dʒɪ.kəl/

1.
relating to or concerned with the relation of living organisms to one another and to their physical surroundings
:
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The study focused on the ecological impact of deforestation.
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They are developing new ecological models to predict climate change.
2.
not harmful to the environment
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Many consumers prefer ecological products.
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The company is committed to using ecological methods in its production.