지구 온난화, 산성비, 기후변화와 같은 환경오염 문제를 다룬다.
환경보호의 중요성을 전달하고자 하는 취지를 가지고 있다. 

These works address environmental issues such as global warming, acid rain, and climate change. The main objective is to understand the fragility of our environment and stress the importance of promoting environmental awareness.