ne 2019 storm.
Experts say global warming is affecting production not only by increasing the number and severity of storms, but with rising temperatures that threaten growth of the plants, which need to be in water a consistent 10-15 degrees Celsius year-round. Because of the two factors, the output of wasabi grown in clear-flowing water, like at Hoshina's farm, had fallen to half that of 2005, according to the Agriculture Ministry.
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