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- <text id=92TT2197>
- <title>
- Oct. 05, 1992: Cork That Volcano
- </title>
- <history>
- TIME--The Weekly Newsmagazine--1992
- Oct. 05, 1992 LYING:Everybody's Doin' It (Honest)
- </history>
- <article>
- <source>Time Magazine</source>
- <hdr>
- THE WEEK, Page 24
- HEALTH & SCIENCE
- Cork That Volcano
- </hdr><body>
- <p>Ash and particles in the air seem to make the ozone hole worse
- </p>
- <p> The primary cause of the hole in the Earth's protective ozone
- layer is a group of man-made chemicals called
- chlorofluorocarbons (CFCs), used in refrigerators, air
- conditioners and plastic foams. The chlorine released when these
- compounds decompose attacks ozone, letting dangerous ultraviolet
- light from the sun shine through.
- </p>
- <p> But a report in Nature suggests that nature can help the
- process along. Ozone depletion was expected to be reasonably
- mild in 1991; instead, it was severe. That year also saw major
- eruptions by Mount Hudson in Chile and Mount Pinatubo in the
- Philippines. Volcanoes release enormous amounts of dust. Dust,
- along with ice crystals, provides surfaces where
- ozone-destruction chemistry works most efficiently.
- Unfortunately, while the industrial world is phasing out CFCs
- before the turn of the century, other compounds are also ozone
- destroyers -- and volcano control is somewhat farther off.
- </p>
-
- </body></article>
- </text>
-
-