Jun 19, 2011 · Every 11 years the Sun is particularly active, and numerous dark sunspots are visible on its surface. These maxima of solar activity are ...

Mar 7, 2024 · First, HS93 lagged the smoothed sunspot numbers by a full solar cycle, based on the assumption that the TSI lagged long-term smoothed sunspots ...

Sep 13, 2006 · And Sunspots are just an indication of what is happening in the Sun. ... solar constant with the sunspot cycle. I have looked in great detail ...

Jul 15, 2005 · It's obvious. The sun provides 99.998% of the energy to the Earth's climate (the rest coming from geothermal heat sources).

Aug 3, 2005 · Sunspot observations for the last 400 years clearly indicate that current levels of solar activity are very different from the state of the sun ...

Nov 14, 2016 · Attributing global warming to the sun has become untenable, because solar activity has not increased for the last 65 years. It has been ...

Dec 6, 2004 · There is little evidence for a connection between solar activity (as inferred from trends in galactic cosmic rays) and recent global warming.

Sep 6, 2023 · ... solar cycle. During periods of intense solar activity—characterized by peaks in sunspots, flares, and hotspots called faculae—TSI increases ...

Aug 23, 2011 · Tying those factors together in order to estimate solar irradiance variations in the past is crucial for attributing past climate changes, ...

Nov 11, 2023 · The figure below shows the sunspot number, which is a common proxy for solar activity, and the global mean temperature.