This is the 140th most frequent Korean word.
영향을
"Influence" or "impact."
Here, '영향을' refers to the consequence or effect ('impact') his decision had, emphasizing the result of an action on others.
그의 결정은 다른 사람들에게 깊은 영향을 미쳤다.
His decision had a profound impact on others.
In this sentence, the word '영향을' is used to describe the negative impact or outcome that climate change may cause on the environment.
기후 변화는 생태계에 나쁜 영향을 줄 수 있다.
Climate change can have a negative influence on ecosystems.
'영향을' here signifies the positive effects or inspiration she brought upon others through her actions.