Cloud formation and climate change

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For the album of the same name, see Nephology (album).

Nephology (/nɪˈfɒlədʒi/; from the Greek word nephos for 'cloud') is the study of clouds and cloud formation. British meteorologist Luke Howard was a major researcher within this field, establishing a cloud classification system.

While this branch of meteorology still exists today, the term nephology, or nephologist is rarely used. The term came into use at the end of the nineteenth century, and fell out of common use by the middle of the twentieth.[1] Recently, interest in nephology (if not the name) has surged as many meteorologists have begun to focus on the relationship between clouds and global warming[2] which is a major source of uncertainty regarding "...estimates and interpretations of the Earth’s changing energy budget."[3]

  • Since the late 1990s, some have suggested that when high solar activity lowers levels of cosmic rays, that in turn reduces cloud cover and warms the planet. Others say that there is no statistical evidence for such an effect. [1]

Some nephologists believe that an increase in global temperature could decrease the thickness and brightness (ability to reflect light energy), which would further increase global temperature.[4] Recently research has been going on at CERN's CLOUD facility to study the effects of the solar cycle and cosmic rays on cloud formation.[5]

Notes[]

  1. ^ "Nephology". Oxford English Dictionary (DRAFT REVISION). Oxford University Press. September 2003. Retrieved 25 March 2007.
  2. ^ Fluffy Thinking Financial Times. Retrieved 2007-08-08
  3. ^ Boucher, O., D. Randall, P. Artaxo, C. Bretherton, G. Feingold, P. Forster, V.-M. Kerminen, Y. Kondo, H. Liao, U. Lohmann, P. Rasch, S.K. Satheesh, S. Sherwood, B. Stevens and X.Y. Zhang (2013). "Clouds and Aerosols. In: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change" (PDF). ipcc.ch. Cambridge University Press. Retrieved 14 November 2020. Clouds and aerosols continue to contribute the largest uncertainty to estimates and interpretations of the Earth’s changing energy budget.CS1 maint: multiple names: authors list (link)
  4. ^ Clouds' role in global warming studied Archived 25 December 2007 at the Wayback Machine CNN website. Retrieved 2007-08-08
  5. ^ "Cloud formation may be linked to cosmic rays" (Press release). Nature News. 24 August 2011. Retrieved 20 October 2011.

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