The remarkable development of modern civilization has led to increased environmental pollution, and in recent years natural disasters have occurred all over the world. It is said that even after humanity disappears, plastic and glass will remain in their original form for about 50 million years. It is estimated that it will take 100 million years to fully recover. It is easy to destroy, but it takes many years to rebuild. No matter how amazing man-made things humans have created, I feel the power of plants that take root on the ground and try to regenerate.