Scafetta prediction widget update

Watts Up With That?

By Dr. Nicola Scafetta

It is time to update my widget comparing the global surface temperature, HadCRUT3 (red and blue), the IPC 2007 projection (green) and my empirical model (black thick curve and cyan area) based on a set of detected natural harmonics (period of approximately: 9.1, 10-11, 20 and 60 years) which are based on astronomical cycles, plus a corrected anthropogenic warming projection of about 0.9 oC/century. The yellow curve represents the harmonic model alone without the corrected anthropogenic warming projection and represents an average lower limit.

The proposed astronomically-based empirical model represents an alternative methodology to reconstruct and forecast climate changes (on a global scale, at the moment) which is alternative to the analytical methodology implemented in the IPCC general circulation models. All IPCC models are proven in my paper to fail to reconstruct all decadal and multidecadal cycles observed in the temperature since 1850. See details…

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