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600 Years of Grape Harvests Document 20th Century Climate Change

Earth and Space Science News (EOS) – “Climate change isn’t just captured by thermometers—grapes can also do the trick. By mining archival records of grape harvest dates going back to 1354, scientists have reconstructed a 664-year record of temperature traced by fruit ripening. The records, from the Burgundy region of France, represent the longest series of grape harvest dates assembled up until now and reveal strong evidence of climate change in the past few decades. Science with Grapes As far back as the 19th century, scientists have been using records of grape harvest dates to track climatic changes. “Wine harvest is a really great proxy for summer warmth,” said Benjamin Cook, a climate scientist at the NASA Goddard Institute for Space Studies in New York not involved in the research. “The warmer the summer is, the faster the grapes develop, so the earlier the harvest happens…”

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