Variation in solar activity during a recent sunspot cycle [credit: Wikipedia]
Dr. Scafetta offers a new analysis of the sun-climate issue, with fresh research. Clearly a crucially important topic in climate science, where certain pre-conceived ideas have dominated the discussion in recent years, to the point of refusing to even have one.
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Although the sun provides nearly all the energy needed to warm the planet, its contribution to climate change remains widely questioned, says Nicola Scafetta.
Many empirically based studies claim that it has a significant effect on climate, while others (often based on computer global climate simulations) claim that it has a small effect.
The Intergovernmental Panel on Climate Change (IPCC) supports the latter view and estimates that almost 100% of the observed warming of the Earth’s surface from 1850–1900 to 2020 was caused by man-made emissions. This is known as the anthropogenic global warming…
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