Hyphens, En Dashes, Em Dashes

Q. Where does Chicago stand on this “eco” compound word madness? Everything that comes across my desk these days is “eco-conscious, ecobusiness, eco centered,” and of course not a single word of it is consistent.

A. Chicago style closes up most prefixes, following Webster’s 11th Collegiate Dictionary, but if you’d rather hyphenate, set your own style and record it in your style sheet.