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NARRATOR:And with this change... ♪ ♪...about 300 million years ago, most of the swamps dry up andcease their production of coal. SOREGHAN:When coal formation essentially ended, it meant that we weren't locking away as muchcarbon dioxide, and yet, volcanoes werestill belching out CO2, but we weren'tdrawing it down as much. And therefore carbon dioxidebegan rising in the atmosphere,the Earth began warming......and the glaciers startedmelting. ♪ ♪
Full Transcript
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NARRATOR And with this change
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about 300 million years ago
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most of the swamps dry up and cease their production of coal
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SOREGHAN When coal formation
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essentially ended it meant that
00:00:20.533 --> 00:00:23.167
we weren't locking away as much carbon dioxide
00:00:23.167 --> 00:00:29.633
and yet volcanoes were still belching out CO2
00:00:29.633 --> 00:00:32.167
but we weren't drawing it down as much
00:00:32.167 --> 00:00:35.001
And therefore carbon dioxide began rising
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in the atmosphere the Earth began warming
00:00:39.867 --> 00:00:42.002
and the glaciers started melting
00:00:42.002 --> 00:00:46.005
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Movie Summary
Science documentaries about various topics.
