8. Conclusion
To complete our previous analysis that led to reasonably correlate an estimate of ice imbalance observed between 1994 and 2017 to an estimate of anthropogenic heat released during the same period of time, it was shown that heat management on Earth can be compared to the system which controls the temperature inside a refrigerator. The comparison showed that water acts as a refrigerant to manage solar and anthropogenic heats and control the global average environmental temperature and terrestrial heat accumulation. Thermodynamic characteristics of water and water interphases applied to data of year 2018 taken as example confirmed that eAHR was negligible relative to the reported rAHR. Nevertheless, eAHR was found again sufficient to have caused the melting of a large part of the lost ices. This finding led to the conclusion that much more ices should have been lost under the action of the dominant radiative forcing for 2018. The quantitative comparison between eAHR and rAHR in terms of thermodynamic exchanges and the finding of discrepancies relative to the reported temperature and ocean level data led to questioning the consistency of rAHR estimate. Quantification of thermal exchanges confirmed the qualitative analysis that led to conclusion that surface temperature should not change much even in distant future whereas chaotic events like hurricanes, tornadoes and flooding should increase already from now in strength and frequency with the increase of AHR regardless of its origin. In addition, it was emphasized that the combustion of hydrocarbon-based sources of energy generates new hot vapor in addition to CO2. Once cooled, this water stored in oil and gas for millions of year increases the amount of free water on Earth. However, its estimated amount is still minor compared to the water generated by ice loss. Whether it can play a role in climate evolution remains to be studied. Finally, heat-cycle assessment is proposed to compare the different sources of energy and determine which ones may replace those currently exploited. Hydrogen seems to be an interesting candidate if it can be produced by electrolysis with competitive and acceptable heat-cycle and life-cycle assessments; an essential condition to respect both the climate and the environment. Such evaluations will have to be done by suitable interdisciplinary consortia attempting to understand and to take into account the complexity of Earth like biologists are doing for the human body.