[DOC] [TLE] History - The Ozone Hole [PAR] Once these stratospheric clouds form the process can take place, even in warmer 
conditions. ... Further studies estimated that the ozone layer would be depleted 
by CFC's ... In 1984 British Antarctic Survey scientists, Joesph Farman , Brian 
Gardiner, ... As the first one in print, he gets full credit for discovery of the ozone 
hole. [DOC] [TLE] Ask The Scientist - The Ozone Hole [PAR] The discovery of the annual depletion of ozone above the Antarctic was first ... 
Brian Gardiner and Jonathan Shanklin which appeared in Nature in May 1985. 
Later, NASA scientists re-analyzed their satellite data and found that the whole of 
... cold enough for these clouds to form widely through the centre of the ozone 
layer. [DOC] [TLE] Ozone depletion - Wikipedia [PAR] Ozone Depletion describes two distinct but related phenomena observed since 
the late 1970's: .... This is why ozone holes first formed, and are deeper, over 
Antarctica. .... These polar stratospheric clouds (PSC) form during winter, in the 
extreme ..... of the Antarctic "ozone hole" by British Antarctic Survey scientists 
Farman,... [DOC] [TLE] Ozone Depletion: CQR [PAR] Apr 3, 1992 ... Until recently, severe depletion of the earth's protective ozone layer -- which 
blocks ... planes -- detected was the highest concentration of ozone-destroying ... 
1. Since the ozone hole opened over Antarctica in 1985, scientists have ..... The 
same year, NASA and NOAA launched an airborne expedition to the... [DOC] [TLE] the depletion of earth's ozone layer - National Academy of Sciences [PAR] 1. With each passing year, the continent-size gap in Earth's ozone layer kept 
getting bigger and bigger ... protective layer of stratospheric ozone above 
Antarctica. [DOC] [TLE] Stratospheric ozone depletion - NCBI - National Institutes of Health [PAR] Feb 21, 2006 ... Solar ultraviolet radiation creates an ozone layer in the atmosphere which in ... 
depletion, stratosphere, ultraviolet, Montreal Protocol, Antarctic ozone hole ... 
Scientific interest in high-altitude stratospheric ozone dates to 1881 when ... 
Higher ozone concentrations were measured throughout the year in the... [DOC] [TLE] ``Polar Research''. In: Van Nostrand's Scientific Encyclopedia, 9th ... [PAR] regions are similarlow mean annual temperatures; oceans with the presence of 
... Expeditions to the Arctic date back to the 1600s; to the Antarctic, the late 1700s. 
..... until May 1985 did the British group publicly report that a massive decrease in 
... One may ask, How does ozone get into the stratosphere in the first place? [DOC] [TLE] Sources of Ozone Depletion - OzoneDepletion.info [PAR] Concerns about the ozone layer were first raised in the late 1960s when it was ... 
of the Antarctic ozone hole in 1985 galvanized the interest of scientists and policy 
makers. ... The chemicals involved in these catalytic reactions include chlorine 
oxide, ... Large fires and certain types of marine life produce one stable form of... [DOC] [TLE] D'Aleo on ozone hole: It is very likely to have been there forever ... [PAR] Oct 20, 2011 ... This year, for the first time scientists also found a depletion of ozone above the ... 
Like a pendulum, a swing to one state, can result in a rebound to the opposite ... 
that measure ozone were first available and processed (1985). ... the ozone hole 
was discovered by the scientists of the British Antarctic Survey... [DOC] [TLE] America's Investment in the Future - National Science Foundation [PAR] Page 1 ... that the Arctic and the Antarctic have much to teach us about our Earth 
and its atmosphere, oceans, and ... Yet these polar regions ... During the First 
Polar Year (188283), scien- ..... form, however, chlorine doesn't attack ozone. It 
just collects inside the vortex. ... Scientific Ice Expeditions (SCICEX) program 
have. [DOC] [TLE] Ozone Depletion - Back to Home [PAR] Why Does The Ozone Hole Form? ... Form? Project 1: Written Arguments from 
Evidence ... depletion in the ozone layer over the southern Antarctic, which was 
detected a decade ago. ... But scientists say these factors are not to blame

Question: In 1985 a British Antarctic science expedition first detected one of these that forms annually in the ozone layer
Answer: a hole