Land:Wine Grapes: Vulnerable to High Temperatures
Wine country on the move. Current (left panel) and predicted future (right panel) regions suitable for growing premium wine grapes in the 48 contiguous United States. Colors designate the proportion of years that a location would have optimal conditions.
Published: November 8, 2010, 12:00 am
Updated: May 7, 2012, 6:08 pm
This article has been reviewed by the following Topic Editor:
Margaret Swisher
As temperatures rise in response to increasing greenhouse gas emissions, effects of climate change on the agriculture industry will become more pronounced. The largest impact will fall on plant species that are especially sensitive to changing weather patterns, such as the wine grape (Vitis vinifera). High temperatures during fruit ripening adversely affect wine quality and thus its market value. For example, premium Petit Verdot wine grapes from the Napa Valley of California fetch an average of $5.95 per kg, whereas mixed red wine grapes from only 150 km away in the hotter San Joaquin Valley garner only an average of $0.24 per kg. [1]
As a consequence of global warming, locations suitable for growing premium wine grapes will shift to higher latitudes and from inland to coastal areas. According to the forecasts of two climate models (the United States Department of Energy’s Parallel Climate Model and the United Kingdom’s Hadley Centre HadCM3 model), wine grapes in all of California except along the coast will ripen 1 to 2 months earlier and at higher temperatures by the year 2100. [2] Total premium wine grape production in the United States might decline by up to 81%.
This is an excerpt from the book Global Climate Change: Convergence of Disciplines by Dr. Arnold J. Bloom and taken from UCVerse of the University of California.
©2010 Sinauer Associates and UC Regents
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Citation
Arnold J Bloom (Lead Author);Margaret Swisher (Topic Editor) "Wine Grapes: Vulnerable to High Temperatures". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth November 8, 2010; Last revised Date May 7, 2012; Retrieved May 20, 2013 <http://www.eoearth.org/article/Wine_Grapes:_Vulnerable_to_High_Temperatures?topic=54468>
The Author
Arnold J. Bloom became a botanist through a circuitous route. Upon receiving an undergraduate degree in Physics from Yale University, he spent several years developing computer models of the spread of air pollution over cities in the USA and Germany. He received a Ph.D. in Biological Sciences from Stanford University, where he also completed a two-semester course in Environmental Legislation at the Law School. He conducted postdoctoral research on the temperature responses of plants at the ... (Full Bio)
As temperatures rise in response to increasing greenhouse gas emissions, effects of climate change on the agriculture industry will become more pronounced. The largest impact will fall on plant species that are especially sensitive to changing weather patterns, such as the wine grape (Vitis vinifera). High temperatures during fruit ripening adversely affect wine quality and thus its market value. For example, premium Petit Verdot wine grapes from the Napa Valley of California fetch an average of $5.95 per kg, whereas mixed red wine grapes from only 150 km away in the hotter San Joaquin Valley garner only an average of $0.24 per kg. [1]
As a consequence of global warming, locations suitable for growing premium wine grapes will shift to higher latitudes and from inland to coastal areas. According to the forecasts of two climate models (the United States Department of Energy’s Parallel Climate Model and the United Kingdom’s Hadley Centre HadCM3 model), wine grapes in all of California except along the coast will ripen 1 to 2 months earlier and at higher temperatures by the year 2100. [2] Total premium wine grape production in the United States might decline by up to 81%.
This is an excerpt from the book Global Climate Change: Convergence of Disciplines by Dr. Arnold J. Bloom and taken from UCVerse of the University of California.
©2010 Sinauer Associates and UC Regents
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