Which detail from "the city without us" most clearly shows that nature is more powerful than it appears?

The detail from "the city without us" most clearly shows that nature is more powerful than it appears is the size of the Japanese insect that can kill hemlock trees. “The City Without Us,” is particularly relevant — if depressing — for New Yorkers because it portrays a city robbed of its eight million people, submerged by water from below, then ravaged by devastating fires, and finally overgrown with vegetation.