For Release: Feb. 7, 1996
Catherine E. Watson
Release No. 96-002
NOTE TO EDITORS: Press Briefing 10 a.m. Thursday, Feb. 8
NASA Data Confirms CFCs Cause Antarctic Ozone Hole
Measurements from the NASA Langley Halogen Occultation
(HALOE) instrument have provided evidence "beyond all
reasonable doubt" that chlorofluorocarbons (CFCs) are responsible
for the annual reduction in stratospheric ozone over Antarctica
known as the ozone hole.
In the Feb. 8 issue of Nature, HALOE project scientist
Dr. James Russell III discusses how more than three years of HALOE
measurements have confirmed that CFCs are the largest source of
ozone-destroying chlorine in the stratosphere. Russell said, "These
results implicate the CFCs beyond all reasonable doubt as
dominating ozone depletion in the lower stratosphere."
Russell will be available for media interviews from 10 to 11
a.m. Feb. 8 at the NASA Langley Research Center newsroom, 5 N.
Dryden St., Hampton.
The HALOE measurements confirmed CFCs as the source of the
ozone-destroying chlorine by measuring both chlorine and fluorine
gases in the stratosphere. The results show that both of these
gases are primarily created by the breakdown of CFCs.
Media who wish to attend the briefing should contact Catherine
Watson at 864-6122.
text-only version of this release