Sunspots reaching 1,000-year high

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SUMMARY

The Sun has reached a level of activity not seen in the past 1,000 years, according to a study by scientists at the Institute for Astronomy in Zurich. This analysis utilized ice core data from Greenland to assess historical sunspot activity. Over the last century, an increase in sunspots has coincided with a rise in Earth's temperatures, a trend exacerbated by greenhouse gases from fossil fuel combustion.

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Ivan Seeking
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A new analysis shows that the Sun is more active now than it has been at anytime in the previous 1,000 years.
Scientists based at the Institute for Astronomy in Zurich used ice cores from Greenland to construct a picture of our star's activity in the past.

They say that over the last century the number of sunspots rose at the same time that the Earth's climate became steadily warmer.

This trend is being amplified by gases from fossil fuel burning, they argue. [continued]

http://news.bbc.co.uk/2/hi/science/nature/3869753.stm
 
Earth sciences news on Phys.org
Very interesting article Ivan, thanks!
 

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