[extropy-chat] warmer weather = better wine
Spike
spike66 at comcast.net
Tue Nov 18 04:03:14 UTC 2003
Some folks talk about global warming like its a BAD thing.
Global warming linked to wine quality
Monday, November 17, 2003 Posted: 10:05 AM EST (1505
GMT)
YAKIMA, Washington (AP) -- Global
warming may become a worldwide
catastrophe, but at least the wine
should be better.
Researchers from three U.S. universities
have found that vintages improved as
temperatures rose over the past 50 years,
especially in areas with cooler climates.
The findings could prove troublesome for
vineyards in traditionally warmer regions.
"When you talk to grape growers and
winemakers today, they will still tell you
climate is the final player in how good a
vintage will be," said Gregory Jones,
Southern Oregon University climatologist
and co-author of the report. "We are going
to continue to see a warming
environment, and there will be some
challenges the industry will have to meet
one way or another."
Jones joined researchers from Utah State University
and the University of Colorado
to study 27 renowned wine regions in nine different
countries. Using vintage rating
system devised by Sotheby's auction house, they found
that most vintages improved
as vineyards' temperatures rose an average of 1.3
degrees Celsius over the past 50
years.
The effects were strongest in cool climate regions,
such as the Mosel and Rhine
valleys of Germany, suggesting warmer temperatures
offer the greatest advantage to
cold-climate grape-growing regions.
The findings will be published in a future issue of
the journal Climatic Change.
A predicted rise of another 2 degrees Celsius over the
next half century could have
more mixed results, the study showed.
Cooler climates, such as Oregon, Washington and
British Columbia, could continue
to benefit from global warming.
But regions with warmer climates, such as Italy's
famed Chianti region, could see
grapes ripen too quickly under ever warmer
temperatures. Grapes that ripen too
quickly on the vine generally have higher sugar
content, which produces more
alcoholic wine with less acidity and balance.
Rising temperatures may force growers to manage vines
differently to produce
similar wine styles, or to plant different varieties
better suited to the changing
climate, Jones said.
The news could be unsettling for an industry that
prides itsel f on regional identity
and reputation.
Andrew Walker, a professor of viticulture at the
University of California at Davis,
agrees rising temperatures are leading to changes in
the industry.
Whether those changes will be permanent remains to be
seen, he said.
"I think everyone agrees in most scientific circles
that change is occurring. What that
change is, is still up in the air," he said. "We'll
have to sort of adapt on the fly. If it
really is catastrophic and not just a blip, vintners
will definitely change how they plan
and where they plant."
The extreme heat wave in Europe this summer, which
some experts blamed on
global warming, offers an example, Jones said.
"In some areas, it could have been very detrimental.
Southern Italy, Greece are
hard-pressed to produce any good wine this year,"
Jones said. "But southern
England? It may be their best vintage since prior to
the little Ice Age."
Others argue the effects of rising temperatures on the
wine industry are simply a very
narrow picture of a broader problem.
"There's a heck of a lot more at stake here than
wine," said K.C. Golden, policy
director for the Olympia-based nonprofit Climate
Solutions. "It is a sign that climate
disruption is going to affect every aspect of our
lives -- our ecosystems, our
economies, our livelihood."
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