Above: Earth in comparison, size wise to common sunspots
The Christion Science Monitor had a detailed article recently that brought in a surprisng source – NASA GISS – an entity that seems firmly entrenched in the AGW- CO2 theory of climate change. Here are some excerpts from the article:
Researchers say they’ve found puzzling correlations between changes in the sun’s output and weather and climate patterns on Earth. These links appear to rise above the level of misinterpreted data or faulty equipment.
“There are some empirical bits of evidence that show interesting relationships we don’t fully understand,” says Drew Shindell, a researcher at NASA’s Goddard Institute for Space Studies in New York.
For example, he cites a 2001 study in which scientists looked at cloud cover over the United States from 1900 to 1987 and found that average cloud cover increased and decreased in step with the sun’s 11-year sunspot cycle. The most plausible cause, they said: changes in the ultraviolet (UV) light the sun delivers to the stratosphere.