Obnoxious is a word that instantly evokes a reaction. It’s often used to describe people, behaviors, or situations that are so unpleasant, annoying, or offensive that they become hard to tolerate.

We asked readers to channel their inner Carolyn Hax and answer this question. Some of the best responses are below. Dear Carolyn: Two years ago, my good friend married a man my husband and I don’t ...

An illustration of carbon dioxide molecules entering a covalent organic framework. An image of a carbon dioxide–capturing covalent organic framework created in the lab of Omar M. Yaghi. Credit: ...