by Hermann Harde, Global and Planetary Change, 24 February 2017
Highlights
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An alternative carbon cycle is presented in agreement with the carbon 14 decay.
The CO2 uptake rate scales proportional to the CO2 concentration.
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Temperature dependent natural emission and absorption rates are considered.
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The average residence time of CO2 in the atmosphere is found to be 4 years.
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Paleoclimatic CO2 variations and the actual CO2 growth rate are well-reproduced.
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The anthropogenic fraction of CO2 in the atmosphere is only 4.3%.
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Human emissions only contribute 15% to the CO2 increase over the Industrial Era.