Statistical Analyses of Surface Temperatures in the IPCC Fifth Assessment Report Douglas J. Keenan
Executive Summary
Temperatures on Earth’s surface—i.e. where people live—are widely believed to provide
evidence for global warming. Demonstrating that those temperatures actually provide
evidence, though, requires doing statistical analysis. All such statistical analyses of the
temperatures that have been done so far are fatally flawed. Astoundingly, those flaws are
effectively acknowledged in the IPCC Fifth Assessment Report (AR5). The flaws imply that
there is no demonstrated observational evidence that global temperatures have significantly
increased (i.e. increased more than would be expected from natural climatic variation alone).
Despite this, one of the main conclusions of AR5 is that global temperatures have increased
very significantly. That conclusion is based on analysis that AR5 itself acknowledges is fatally
flawed. ..
source
Temperatures on Earth’s surface—i.e. where people live—are widely believed to provide
evidence for global warming. Demonstrating that those temperatures actually provide
evidence, though, requires doing statistical analysis. All such statistical analyses of the
temperatures that have been done so far are fatally flawed. Astoundingly, those flaws are
effectively acknowledged in the IPCC Fifth Assessment Report (AR5). The flaws imply that
there is no demonstrated observational evidence that global temperatures have significantly
increased (i.e. increased more than would be expected from natural climatic variation alone).
Despite this, one of the main conclusions of AR5 is that global temperatures have increased
very significantly. That conclusion is based on analysis that AR5 itself acknowledges is fatally
flawed. ..
source