Friends of Science Calgary

The Sun is the main driver of climate change. Not you. Not carbon dioxide.

New Research on TSI and Solar-Lunar Effects on Climate Change

Nicola Scafetta and Richard C. Willson, “Comparison of Decadal Trends among Total Solar Irradiance Composites of Satellite Observations,” Advances in Astronomy, vol. 2019, Article ID 1214896, 14 pages, 2019. (open access)
S. Cavazzani, S. Ortolani, N. Scafetta, V. Zitelli, G. Carraro, Detection of a 14-days atmospheric perturbation peak at Paranal associated with lunar cycles, Monthly Notices of the Royal Astronomical Society Letters 484(1):5, 2019.
The first paper discusses the trend of the total solar irradiance from 1980 to 2000 with a new analysis. The TSI models are shown to poorly reconstruct the fact that TSI increased from 1980 to 2000.
The second paper finds an effect of the solar-lunar tidal cycle at 14 days in a peculiar climate records referring to very high mountains in Chile. This suggests that weather patterns are also influenced by the tidal cycles in a detectable way. Thus, solar-lunar effect cannot be ignored to properly forecast weather on the long period.


  1. Can someone explain in ordinary language what is the significance of these studies.

  2. patricia Littler

    March 22, 2019 at 2:10 pm

    many things affect weather that we cannot control.

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