[1] Scafetta was a research associate at the ACRIM Lab group and an adjunct assistant professor in the physics department at Duke University for a few years after 2010.
The Duke University student newspapers report that Scafetta and West's interpretation of Richard Willson's analysis is that "the sun may have minimally contributed about 10 to 30 percent of the 1980-2002 global surface warming.
[8][9] Scafetta has argued, "At least 60% of the warming of the Earth observed since 1970 appears to be induced by natural cycles which are present in the solar system," instead claiming that climate is modulated by astronomical oscillations.
"[11] In a 2011 article published in The Open Atmospheric Science Journal ecologist Craig Loehle of the National Council for Air and Stream Improvement (a forest industry institution) and Scafetta forecast that the world climate "may remain approximately steady until 2030-2040, and may at most warm 0.5-1.0°C by 2100 at the estimated 0.66°C/century anthropogenic warming rate".
[13] In 2022, Scafetta wrote a paper claiming that equilibrium climate sensitivity was significantly lower than what Coupled Model Intercomparison Project (phase 6) (CMIP6) predict.