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by addison-lee
1876 days ago
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From what I understand it is feedback loops that cause concern for exponential climate change. For example, snow reflects a large amount of the sun’s energy back into space. As you lose the snow cover you absorb more heat causing more snow to melt, leading to snow melting faster, etc. etc. Another example is in the Arctic tundra. The top layer of the ground was always frozen, i.e. a permafrost. However now that layer is melting and it releases a ton of methane. Methane causes the temperatures to rise, leading to the permafrost melting faster and more methane being released. |
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