I think in this instance, Kolbert’s use of the butterfly as an example for the destruction of global warming is a good one based on her explanation previous to her information. The fact that Europeans were collecting butterflies for centuries shows that people care about things that are being destroyed by our actions. Using such a figure as Charles Darwin can bring about any biologically related scientific point easier than using basically any other scientist.
As far her writing, I still like the little things she adds. For instance, describing someone’s facial hair in relation to a movie star is not usually seen in a science book. That makes this much easier to relate to.