The Sword of Damocles behind the Curtain of the Earth’s Global Warming: A Review  

作　　者：Jacques Bourgois Jacques Bourgois(Institut des Sciences de la Terre Paris (iSTeP), Unité Mixte de Recherche (UMR) 7193, Université Pierre et Marie Curie (UPMC)/Université Paris 06, Paris, France;iSTeP, UMR 7193, Centre National de la Recherche Scientifique (CNRS), Paris, France)

机构地区：[1]Institut des Sciences de la Terre Paris (iSTeP), Unité Mixte de Recherche (UMR) 7193, Université Pierre et Marie Curie (UPMC)/Université Paris 06, Paris, France [2]iSTeP, UMR 7193, Centre National de la Recherche Scientifique (CNRS), Paris, France

出　　处：《International Journal of Geosciences》2024年第2期119-136,共18页地球科学国际期刊（英文）

摘　　要：The “mainstream” climatology (MSC)—i.e. which includes the Intergovernmental Panel on Climate Change (IPCC) community—considers the present day massive release of greenhouse gases into the atmosphere as the main cause of the current global warming trend. The main inference from this stance is that the increase in temperature must occur after the release of greenhouse gases originating from the anthropic activities. However, no scientific evidence has been provided for this basic notion. Earth paleoclimatic records document the antecedence of temperature over CO₂ levels. For the past 65 Ma, the temperature parameter has controlled the subsequent increase in CO₂. This includes the three rapid aberrant shifts and extreme climate transients at 55 Ma, 34 Ma, and 23 Ma REF _Ref159913672 \r \h \* MERGEFORMAT [1]. The simple fact of their existence points to the potential for highly nonlinear responses in climate forcing. Whatever these shifts and transients are, CO₂ remains a second order parameter in their evolution through time. Confronted with the past, a suitable response must therefore be given to the unresolved question of whether the CO₂ trends precede the temperature trends in the current period, or not. The assertion that the current global warming is anthropogenic in origin implicitly presupposes a change of paradigm, with the consequence (the increase in CO₂ levels) that occurred in Earth’s past being positioned as the cause of the warming for its present day climatic evolution. The compulsory assumption regarding the antecedence of CO₂ levels over the temperature trends is associated with the haziness of the methodological framework—i.e. the paradigm—and tightens the research fields on the likely origins of global warming. The possible involvement of an “aberrant” natural event, hidden behind the massive release of greenhouse gases, has not been considered by the MSC.The “mainstream” climatology (MSC)—i.e. which includes the Intergovernmental Panel on Climate Change (IPCC) community—considers the present day massive release of greenhouse gases into the atmosphere as the main cause of the current global warming trend. The main inference from this stance is that the increase in temperature must occur after the release of greenhouse gases originating from the anthropic activities. However, no scientific evidence has been provided for this basic notion. Earth paleoclimatic records document the antecedence of temperature over CO₂ levels. For the past 65 Ma, the temperature parameter has controlled the subsequent increase in CO₂. This includes the three rapid aberrant shifts and extreme climate transients at 55 Ma, 34 Ma, and 23 Ma REF _Ref159913672 \r \h \* MERGEFORMAT [1]. The simple fact of their existence points to the potential for highly nonlinear responses in climate forcing. Whatever these shifts and transients are, CO₂ remains a second order parameter in their evolution through time. Confronted with the past, a suitable response must therefore be given to the unresolved question of whether the CO₂ trends precede the temperature trends in the current period, or not. The assertion that the current global warming is anthropogenic in origin implicitly presupposes a change of paradigm, with the consequence (the increase in CO₂ levels) that occurred in Earth’s past being positioned as the cause of the warming for its present day climatic evolution. The compulsory assumption regarding the antecedence of CO₂ levels over the temperature trends is associated with the haziness of the methodological framework—i.e. the paradigm—and tightens the research fields on the likely origins of global warming. The possible involvement of an “aberrant” natural event, hidden behind the massive release of greenhouse gases, has not been considered by the MSC.

关 键 词：CLIMATE CO2 Temperature PALEOCLIMATE WARMING 

分 类 号：P46[天文地球—大气科学及气象学]