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Atmospheric chemists are puzzled, says Jacob, by the mechanism which controls the concentration of ozone in the troposphere, and he finds this embarrassing...

Author: By Amanda C. Rawls, | Title: Bromine Enters the Equation | 2/16/1993 | See Source »

With an eye for answering these and other questions, McKay Associate Professor of Atmospheric Chemistry Daniel J. Jacob has developed a model which he says explains the sudden loss of tropospheric ozone over the Arctic each spring, and possibly over one area of the equatorial Pacific...

Author: By Amanda C. Rawls, | Title: Bromine Enters the Equation | 2/16/1993 | See Source »

...most noble quests in atmospheric chemistry today," Jacob says. "It's kind of the Holy Grail, to try to understand what controls tropospheric ozone, because then you will understand a lot of other things...

Author: By Amanda C. Rawls, | Title: Bromine Enters the Equation | 2/16/1993 | See Source »

...model proposed by Jacob and Research Assistant Song-Miao Fan explains how unreactive bromine combines with acid particles present in human pollution and is then activated by light so it can "eat" more ozone...

Author: By Amanda C. Rawls, | Title: Bromine Enters the Equation | 2/16/1993 | See Source »

...PLEASURE TO MEET UP AGAIN with the Wittings, the warm, turn-of-the- century farm family introduced in Sarah, Plain and Tall, the Hallmark Hall of Fame 1991 hit. In SKYLARK (Feb. 7, CBS), the mail-order marriage of Sarah (Glenn Close) and Jacob (Christopher Walken) has turned into a tender love match, and Sarah's stepchildren are thriving. The problem is nature: a serious drought is threatening life on the Kansas plains. In Sarah, Jacob was the one who had to put his past in perspective; this time, the drought forces his wife to take a similar journey. Unfortunately...

Author: /time Magazine | Title: Short Takes: Feb. 8, 1993 | 2/8/1993 | See Source »

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