Image:Ultraviolet Sun.jpg

From Global Warming Art

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Description

Four hundred year history of sunspots variations showing the relative stability of solar activity during the last 50 years.

An image of the sun in ultraviolet wavelengths showing a large prominence at the upper right.

The sun is the ultimate source of nearly all energy at the Earth's surface, and consequently drives climate. It is widely believed that variations in solar activity have played a major role in past climate changes, but that solar changes are too small to play more than a minor role in recent global warming (e.g. Stott et al. 2003, Ammann et al. 2007).

Copyright

Image from the SOHO solar observatory: http://photojournal.jpl.nasa.gov/catalog/PIA03149

This file was created by Solar and Heliospheric Observatory, a joint ESA and NASA project. The SOHO copyright notice permits and encourages the use of SOHO images for "public education efforts and non-commercial purposes" provided that the image is attributed to "SOHO (ESA & NASA)".

Reference

• [abstract] [DOI] Ammann, Caspar M., Fortunat Joos, David S. Schimel, Bette L. Otto-Bliesner, and Robert A. Tomas (2007). "Solar influence on climate during the past millennium: Results from transient simulations with the NCAR Climate System Model". Proceedings of the National Academy of Sciences 104 (10): 3713-3718. 
• [abstract] [full text] Stott, Peter A.; Gareth S. Jones and John F. B. Mitchell (15 December 2003). "Do Models Underestimate the Solar Contribution to Recent Climate Change". Journal of Climate 16: 4079-4093. 

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• 00:13, 10 June 2007 . . 2100×2034 (3,218,177 bytes)