The line charts below display the thousands of square kilometres of the ozone
hole
and the gases that harmed it between 1980 and 2000.
Use synonyms
Overall
, there is a significant increase in the ozone Linking Words
hole
size over the entire time Use synonyms
period
. Freon fell dramatically, Use synonyms
while
NO2 grew steadily.
At the beginning of the Linking Words
period
, the size of the ozone Use synonyms
hole
was just below 50 thousand square kilometres, and in the next five Use synonyms
years
rose moderately to around 80. From 1985 to 1990 it climbed sharply to a little under 200, in the Use synonyms
last
10 Linking Words
years
the Use synonyms
hole
continued to climb slightly, ending the Use synonyms
period
at approximately 240.
In 1980 Freon was the most produced gas, with nearly 150 thousand metric tonnes, in the next five Use synonyms
years
it rocketed considerably to 200. From 1985 to 2000, it decreased rapidly to just over 20, becoming the least produced one. Use synonyms
Furthermore
, NO2, at the start of the Linking Words
period
, had little under 100 thousand metric tonnes of production, Use synonyms
this
grew modestly until 1985, with 120, and in the Linking Words
last
5 five Linking Words
years
it rose steeply to more or less 160.Use synonyms
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