Even soil feels the heat: Soils release more carbon dioxide as globe warms

Article Tags: CO2 Level, Comment

More evidence that a climbing CO2 rate is the result of warming, not the cause. There are two other ramifications as I see it.

1. Results like this mean that the anthropogenic fraction must be readjusted. Is man’s annual contribution 4%? 3%? Less?

2. This latest natural emission estimate shows that previous source/sink models have been inadequate, as usual. – AS

Image AttachmentEven soil feels the heat: Soils release more carbon dioxide as globe warms

Twenty years of field studies reveal that as the Earth has gotten warmer, plants and microbes in the soil have given off more carbon dioxide. So-called soil respiration has increased about one-tenth of 1 percent per year since 1989, according to an analysis of past studies in today’s issue of Nature

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Source: physorg.com

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