This study presents a bilateral synthesis of artificial global warming and natural global cooling. Mainstream climatology lacks scientific integrity and statistical methodology. Peer review is changed into peer pressure and objectors are labelled “Deniers”. Proper statistical analyses are replaced by graphs and non-causal correlation analyses that are based on the last 166 years, while 420,000 years of Antarctic data are mainly discarded. Furthermore, climatology ignores that 400 ppm of CO2 predicts a global temperature of 11.5 °C, rather than the current 1.3 °C. It focuses on artificial global warming and overlooks the threat of natural global cooling. It also ignores the solar expert Professor Zharkova, who predicts a mini ice-age by 2030, which is likely to turn global warming into global cooling. The current study compared the Antarctic temperatures during the last 10,000 years (baseline 0.00 °C) with the global temperature of 1.3 °C. This common definition of global warming failed to reach statistical significance. However, the Antarctic temperatures during the last 420.000 years support the notion that we live in a glacial period of -8.9 °C, rather than in an interglacial period of 0.00 °C. In that case, the artificial global warming would be 10.2 °C, rather than 1.3 °C. This alternative definition of global warming is statistically significant. Furthermore, it is supported by the current CO2 level of 400 ppm and the significant duration and stability of the current interglacial. Consequently, decreasing the CO2 level could cause a global disaster threatening the survival of humanity. The increased thermal range and the precarious balance between artificial global warming and natural global cooling could also explain the current climatological instability.