Thursday, September 13, 2012

OT - Sunspots vs Climate

This chart shows the relationship between solar radiation and daytime high temperatures.  

Scientists have been studying solar influences on the climate for more than 5,000 years. Chinese imperial astronomers kept detailed sunspot records, and noticed that more sunspots meant warmer weather. In 1801 Wilhelm Herschel (discoverer of Uranus) observed that when there were fewer spots, the price of wheat soared. He surmised that less light and heat from the sun resulted in reduced harvests.