Soil C stocks are the net result of outputs and inputs of plant C, but most warming research focuses only on outputs, making stock responses highly uncertain. Warming-induced outputs (red arrows) in the schematic are represented as CO2 fluxes, reflecting the assumption in ESMs that the land-C–climate feedback occurs through warming stimulating the activities of soil microorganisms that decompose.

Soil feedbacks are a big uncertainty in climate change

From the YALE SCHOOL OF FORESTRY & ENVIRONMENTAL STUDIES Managing uncertainty: How soil carbon feedbacks could affect climate change There is more than twice as much carbon in the planet’s soils than there is in its atmosphere, so the loss of even a small proportion of that could have a profound feedback effect on the…

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Problems With Analyzing Governed Systems

Guest Post by Willis Eschenbach I’ve been ruminating on the continuing misunderstanding of my position that a governor is fundamentally different from simple feedback. People say things like “A governor is just a kind of feedback”. Well, yes, that’s true, and it is also true that a human being is “just a bag full of organic…

BOMBSHELL: Study shows greenhouse gas induced warming dropped for the past 14 years

Paper finds a decrease of IR radiation from greenhouse gases over past 14 years, contradicts expected increase – cloudiness blamed for difference. A paper published in the Journal of Climate finds from 800,000 observations a significant decrease in longwave infrared radiation from increasing greenhouse gases over the 14 year period 1996-2010 in the US Great…