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Re: Carbon in the soil can cause more global warming?
To touch on the original article:
Quote:
"We already know the Arctic climate is warming, and as it warms the depth of the permafrost is lowered. As that happens, more carbon becomes active and can be converted to carbon dioxide, one of the most abundant greenhouse gases in the atmosphere," Horwath said.
She noted that there is disagreement among scientists on just what the added warmth might mean for the high Arctic. Some say warmer climate will produce greater plant activity to absorb more carbon. Others say the overall carbon absorption is decreasing as the permafrost retreats.
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The gorilla in the room is actually methane in this case. Methane is 20x more powerful a GHG than CO2. When the frozen wetlands (tundra) begins to thaw, it can create a runaway effect that can make human contributions look petty. 
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Hypography Science Forums Moderator
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"There are no passengers on Spaceship Earth. We are all crew." - Marshall McLuhan
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