Which version of the following portion of sentence 1 provides the most clarity? "...is by Richard Louv and who says that in the last 30 years kids have become increasingly removed..."
is by Richard Louv, who says that in the last 30 years kids have become increasingly removed
The part of the sentence "who says that..." is a parenthetical phrase about Richard Louv, not about the subject of the sentence. The "and who" is therefore incorrect, and the phrase needs to be set off from the sentence by a comma.
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