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The Roles of Greenhouse Gases in Global Warming

Author

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  • Antero V.E. Ollila

    (Adj Assoc Prof, Department of Civil and Environmental Engineering, School of Engineering, Aalto University, Espoo, Finland Otakaari 1, Box 11000, 00076 AALTO, Finland)

Abstract

Scientists are still debating the reasons for “global warming†. The author questions the validity of the calculations for the models published by the Intergovernmental Panel on Climate Change (IPCC) and especially the future scenarios. Through spectral calculations, the author finds that water vapour accounts for approximately 87% of the greenhouse (GH) effect and only 10% of CO 2 . A doubling of the present level of CO 2 would increase the global temperature by only 0.51 °C without water feedback. The IPCC claims that a temperature increase of 0.76 °C for 2005 was caused in part by water (about 50%), because relative humidity (RH) stays constant in their model. The calculations prove that CO 2 would have increased the temperature by only 0.2 °C since 1750 and that the measured decrease in water since 1948 has compensated for this increase. This study has also produced results indicating a negative feedback for relative humidity. The simulations of this study propose that the IPCC's model atmospheres could be approximately 50% too dry.

Suggested Citation

  • Antero V.E. Ollila, 2012. "The Roles of Greenhouse Gases in Global Warming," Energy & Environment, , vol. 23(5), pages 781-799, July.
    • Handle: RePEc:sae:engenv:v:23:y:2012:i:5:p:781-799
    DOI: 10.1260/0958-305X.23.5.781
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    Cited by:

    1. Ji, Xiang & Sun, Jiasen & Wang, Zebin, 2017. "Turn bad into good: Using transshipment-before-buyback for disruptions of stochastic demand," International Journal of Production Economics, Elsevier, vol. 185(C), pages 150-161.
    2. Zhang, Sufang & He, Yongxiu, 2013. "Analysis on the development and policy of solar PV power in China," Renewable and Sustainable Energy Reviews, Elsevier, vol. 21(C), pages 393-401.
    3. Ruhang, Xu, 2016. "Characteristics and prospective of China׳s PV development route: Based on data of world PV industry 2000–2010," Renewable and Sustainable Energy Reviews, Elsevier, vol. 56(C), pages 1032-1043.
    4. Andrea Marescotti & Alessandro Brazzini, 2014. "L?utilizzo degli standard privati di qualit? nella gdo italiana. Il caso dello standard GlobalG.A.P," Economia agro-alimentare, FrancoAngeli Editore, vol. 16(1), pages 63-83.
    5. Rostami, Raheleh & Khoshnava, Seyed Meysam & Lamit, Hasanuddin & Streimikiene, Dalia & Mardani, Abbas, 2017. "An overview of Afghanistan's trends toward renewable and sustainable energies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 76(C), pages 1440-1464.
    6. Thakur, Jagruti & Chakraborty, Basab, 2015. "Intelli-grid: Moving towards automation of electric grid in India," Renewable and Sustainable Energy Reviews, Elsevier, vol. 42(C), pages 16-25.

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