中世纪暖期是欧洲中世纪时代的一个不寻常的温暖期，从大约十世纪一直持续到十四世纪。
他也承认有关中世纪暖期是否比当前阶段更暖的争论还没有定论。
And he agreed that the debate had not been settled over whether the Medieval warm period was warmer than the current period.
Swetnam博士的工作表明，在气象学家所说的中世纪暖期，即公元900年到1300年，气温的变动和火灾的频率密切相关。
Dr Swetnam's work suggests that variations in temperature were well correlated with the frequency of fire during what climatologists call the medieval warm period, from 900 to 1300.
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