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The Cloud Mystery
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Wikipedia article
'The Cloud Mystery' is a documentary by Danish director Lars Oxfeldt Mortensen. It explores the theory by Danish scientist Henrik Svensmark on how galactic cosmic rays and solar activity affects cloud cover, and how this influences the earth's climate. Also known as 'Klimamysteriet' in Danish.
This documentary presents the work done to develop the theory that cloud cover change is caused by variations in cosmic rays as the major originator of global climate variation. It also mentions that these scientists do not subscribe to the scientific consensus on climate change, which says that human influence and the effect of greenhouse gases are significant drivers of climate. However, the focus is on the work they have done and not on the consensus on anthropogenic global warming.
Release
'The Cloud Mystery' aired on TV2 (Denmark) in early 2008. It was also shown on Norway's NRK and on TV4 Fakta, (which can be viewed in Sweden and Finland.[http://www.tvnyt.com/artikel/default.asp?id=16127 TVnyt.com - Daglige nyheder fra TV-verdenen]) and on Arte (April 2. 2010, "Das Geheimnis der Wolken") in Germany.
Opinions
Danish engineering trade weekly Ingenren found that the documentary gave a sober overview of Henrik Svensmarks theory, though it lacked scientific criticism.[http://ing.dk/artikel/84833 Anmeldelse: Svensmarks klimamysterium p TV2 | Ingeniren]
The documentary sparked a debate between supporters of the scientific consensus that carbon dioxide is the prime cause of global warming, and opponents.[http://www.realclimate.org/index.php/archives/2008/03/a-galactic-glitch/ RealClimate][http://www.sciencebits.com/RealClimateSlurs More slurs from realclimate.org | ScienceBits] However, the scientific results of Svensmark and Nir Shaviv, two of the protagonists, forming the basis of the documentary, have been criticized by Mike Lockwood and Claus Froehlich (see Galactic Cosmic Rays vs Global Temperature).[http://www.theage.com.au/news/national/solar-activity-cleared-of-global-warming-blame/2007/07/11/1183833599508.html Solar activity cleared of global warming blame] - 'The Age', Australia
See also
* Cosmic rays Postulated role in climate change
* Milky Way
* Barred spiral galaxy
* Cloud condensation nuclei
* 'The Chilling Stars'
* 'The Great Global Warming Swindle'
References
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