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ACWORTH, N.H. -- "The state's maple syrup producers say they can see the effects of global warming in their backyards: They are tapping their trees about a month earlier than their ancestors did.
A giant chart on the wall of the Clark Sugar House in Acworth shows the maple syrup season began changing about 20 years ago. Since 1896, generations of Clarks attached their buckets in March, and almost never made syrup before then. But in the mid-1980s, they began tapping mostly in February, and March became the month for boiling and bottling. "Most everybody's tapping a lot earlier than they used to," said Arvin Clark, 72, who has been running syrup production at the farm since 1959.
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That's bad news for New Hampshire's maple syrup manufacturers, who annually pump $4 million into the state's economy. "I think the sugar maple industry is on its way out," UNH researcher Barrett Rock said in 2002. Rock led major research on the risks associated with global climate change.
Tim Perkins, director of the Proctor Maple Research Center at the University of Vermont, is doing research on whether climate change has affected the amount of sap producers can expect from their trees. He declined to preview his results, but agreed that climate change will hurt syrup production in New England. This year, production is generally good because last year's weather conditions were just right. But a spell of unseasonably warm weather earlier this month hurt sap production and quality, said Bill Eva, president of the Maple Producers Association."
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