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Timeline-Global Warming
13
Global Warming
Temperature...
Greenhouse Earth and
Icehouse Earth
During the millennia
Icehouse
Ice ages
100.000 years
Interglacials
10.000/15.000 years
This value of carbon dioxide was also reached 251.4 million years ago causing a mass extinction.
... Carbon Dioxide...
-90% of marine species
-70% of terrestrial species
These estimates about the future emphasize one thing:
... Predictions of the future.
we can't undo the damage but only reduce it.
Svante Arrhenius
11 December 1895
Royal Swedish Academy of Sciences
April 1896
<<increased carbon dioxide = temperature rise>>
1895-
1896
published in the:
Guy Stewart Callendar
Search result: global temperatures had risen 0.3°C over the previous 50 years
1938
because of carbon dioxide emissions from industry
<<Humans could not have such impact on a system as large as the climate.>>
So everyone ignored the problem
The world's opinion
Charles David Keeling
1958- 1961
He was the first to measure the concentration of carbon dioxide in the atmosphere and in the hydrosphere.
Joe Farman,
Brian Gardiner and
Jonathan Shanklin
1985
discovered the Ozone hole