A Critical Reassessment of the Anthropogenic CO₂-Global Warming Hypothesis: Empirical Evidence Contradicts IPCC Models and Solar Forcing Assumptions …

A Critical Reassessment of the Anthropogenic CO₂-Global Warming
Hypothesis: Empirical Evidence Contradicts IPCC Models and Solar Forcing
Assumptions

https://scienceofclimatechange.org/wp-content/uploads/SCC-Grok-3-Review-V5-1.pdf

Abstract

The Intergovernmental Panel on Climate Change (IPCC) attributes observed
climate variability primarily to anthropogenic CO₂ emissions, asserting
that these emissions have driven approximately 1 Wm⁻² of net radiative
forcing since 1750, resulting in a global temperature rise of 0.8-
1.1°C. This conclusion relies heavily on adjusted datasets and outputs
from global climate models (GCMs) within the Coupled Model
Intercomparison Project (CMIP) framework. However, this study conducts a
rigorous evaluation of these assertions by juxtaposing them against
unadjusted observational data and synthesizing findings from recent peer-
reviewed literature. Our analysis reveals that human CO₂ emissions,
constituting a mere 4% of the annual carbon cycle, are dwarfed by natural
fluxes, with isotopic signatures and residence time data indicating
negligible longterm atmospheric retention. Moreover, individual CMIP3
(2005-2006), CMIP5 (2010-2014), and CMIP6 (2013-2016) model runs
consistently fail to replicate observed temperature trajectories and sea
ice extent trends, exhibiting correlations (R²) near zero when compared
to unadjusted records. A critical flaw emerges in the IPCC’s reliance on
a single, low-variability Total Solar Irradiance (TSI) reconstruction,
despite the existence of 27 viable alternatives, where higher-variability
options align closely with observed warming—itself exaggerated by data
adjustments.

We conclude that the anthropogenic CO₂-Global Warming hypothesis lacks
empirical substantiation, overshadowed by natural drivers such as
temperature feedbacks and solar variability, necessitating a fundamental
reevaluation of current climate paradigms.

Keywords: Global warming; climate change; climate modeling; atmospheric
CO2; residence time; future CO2 scenarios; IPCC; total solar irradiance
(TSI)

Submitted 2025-03-06, Accepted 2025-03-18. https://doi.org/10.53234/
SCC202501/06

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