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What Humans Contribute to Atmospheric CO2: Comparison of Carbon Cycle Models with Observations

Received: 03 April 2019    Accepted: 11 May 2019    Published: 12 June 2019
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Abstract

The Intergovernmental Panel on Climate Change assumes that the inclining atmospheric CO2 concentration over recent years was almost exclusively determined by anthropogenic emissions, and this increase is made responsible for the rising temperature over the Industrial Era. Due to the far reaching consequences of this assertion, in this contribution we critically scrutinize different carbon cycle models and compare them with observations. We further contrast them with an alternative concept, which also includes temperature dependent natural emission and absorption with an uptake rate scaling proportional with the CO2 concentration. We show that this approach is in agreement with all observations, and under this premise not really human activities are responsible for the observed CO2 increase and the expected temperature rise in the atmosphere, but just opposite the temperature itself dominantly controls the CO2 increase. Therefore, not CO2 but primarily native impacts are responsible for any observed climate changes.

DOI 10.11648/j.earth.20190803.13
Published in Earth Sciences (Volume 8, Issue 3, June 2019)
Page(s) 139-159
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Carbon Cycle, Atmospheric CO2 Concentration, CO2 Residence Time, Anthropogenic Emissions, Fossil Fuel Combustion, Land Use Change, Climate Change

References
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    Hermann Harde. (2019). What Humans Contribute to Atmospheric CO2: Comparison of Carbon Cycle Models with Observations. Earth Sciences, 8(3), 139-159. https://doi.org/10.11648/j.earth.20190803.13

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    Hermann Harde. What Humans Contribute to Atmospheric CO2: Comparison of Carbon Cycle Models with Observations. Earth Sci. 2019, 8(3), 139-159. doi: 10.11648/j.earth.20190803.13

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    Hermann Harde. What Humans Contribute to Atmospheric CO2: Comparison of Carbon Cycle Models with Observations. Earth Sci. 2019;8(3):139-159. doi: 10.11648/j.earth.20190803.13

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  • @article{10.11648/j.earth.20190803.13,
      author = {Hermann Harde},
      title = {What Humans Contribute to Atmospheric CO2: Comparison of Carbon Cycle Models with Observations},
      journal = {Earth Sciences},
      volume = {8},
      number = {3},
      pages = {139-159},
      doi = {10.11648/j.earth.20190803.13},
      url = {https://doi.org/10.11648/j.earth.20190803.13},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.earth.20190803.13},
      abstract = {The Intergovernmental Panel on Climate Change assumes that the inclining atmospheric CO2 concentration over recent years was almost exclusively determined by anthropogenic emissions, and this increase is made responsible for the rising temperature over the Industrial Era. Due to the far reaching consequences of this assertion, in this contribution we critically scrutinize different carbon cycle models and compare them with observations. We further contrast them with an alternative concept, which also includes temperature dependent natural emission and absorption with an uptake rate scaling proportional with the CO2 concentration. We show that this approach is in agreement with all observations, and under this premise not really human activities are responsible for the observed CO2 increase and the expected temperature rise in the atmosphere, but just opposite the temperature itself dominantly controls the CO2 increase. Therefore, not CO2 but primarily native impacts are responsible for any observed climate changes.},
     year = {2019}
    }
    

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    T1  - What Humans Contribute to Atmospheric CO2: Comparison of Carbon Cycle Models with Observations
    AU  - Hermann Harde
    Y1  - 2019/06/12
    PY  - 2019
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    T2  - Earth Sciences
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    AB  - The Intergovernmental Panel on Climate Change assumes that the inclining atmospheric CO2 concentration over recent years was almost exclusively determined by anthropogenic emissions, and this increase is made responsible for the rising temperature over the Industrial Era. Due to the far reaching consequences of this assertion, in this contribution we critically scrutinize different carbon cycle models and compare them with observations. We further contrast them with an alternative concept, which also includes temperature dependent natural emission and absorption with an uptake rate scaling proportional with the CO2 concentration. We show that this approach is in agreement with all observations, and under this premise not really human activities are responsible for the observed CO2 increase and the expected temperature rise in the atmosphere, but just opposite the temperature itself dominantly controls the CO2 increase. Therefore, not CO2 but primarily native impacts are responsible for any observed climate changes.
    VL  - 8
    IS  - 3
    ER  - 

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