A Letter From The Publisher: Jan. 27, 1967

LIKE most people who work in L-big, sealed office towers, our staff in New York's Time and Life Building has long felt safe from air pollution inside our air-conditioned offices. Most of us had a rude shock when it turned out, during research for this week's cover story, that a great deal of the contaminating stuff in the air outside comes right in through the air-conditioning filters. While this discovery was disillusioning, it only increased the conviction with which our writers and editors prepared our story on the polluted atmosphere.

A big part of...

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