Babies named Karen in the US

As more US counties have reported good air quality days, fewer babies have been named Karen, a correlation of -0.988 that suggests either that clean air discourages the name or that both trends measure the same two-decade cultural shift from one kind of America to another. The air clears, the Karens vanish, and the chart traces the decline of both pollution and a once-popular baby name with the environmental precision of a scatter plot that has filed a complaint with the manager of statistics.

Both numbers moved sharply in 2020 for very different reasons that share a single year. Good-air-quality days rose because lockdowns idled traffic and industry, while Karens hit their demographic nadir as the name became cultural shorthand for pandemic-era confrontations over mask mandates. One line measures clean air; the other measures the social cost of asking strangers to wear masks in it.

Twenty-one years of fewer Karens and cleaner air is a correlation that is funnier than it has any right to be and more meaningless than it appears. The name declined because naming fashion moved on and memes arrived, the air improved because regulation worked, and the chart connected them with the devastating confidence of a coefficient that does not understand internet culture. The air quality improved. The name quality did not. The manager was unavailable for comment.