Some advises on Columbia impact essay please?

Hi all, I’m an international applicant going for Environmental biology. I’ve been stuck on the impact essay for days, I really could use some advice on what should I put there. Some background: I was born to a Chinese family living in Thailand, so I’m a Chinese(nationality wise)but I’ve spent the majority of my life in Thailand. I speak 5 languages(English, Chinese, Thai, Japanese and French), fluent in them with the exception of French. The problem is that I’ve highlighted my love for languages and its culture and history. I’ve also talked about why I wanted to do environmental science in the last essay where it asks why are you attracted to this field of study. Now I’m not sure what to talk about for the impact essay.

Any input will be appreciated, thanks in advance!