Part One describes the Medieval Warm Period, roughly 900 to 1200.

第一部分描述了大约在公元900年到公元1200年的中世纪温暖期。

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Global temperatures began to rise slowly after 1850, with the beginning of the Modern Warm Period.

1850年后，随着现代暖期的开始，全球气温开始缓慢上升。

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Because the midpoint of the Medieval Warm Period was about 850, an extension of Bond's cycles would place the midpoint of the next warm interval in the twenty-fourth century.

由于中世纪温暖期的中点约为850年，因此邦德循环的延长将使下一个温暖间隔的中点出现在二十四世纪。

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Sudden cold can be the biggest threat, especially after a warm period.

VOA: special.2010.01.12

The unusually long period of cold weather has shown how even warm climates can sometimes freeze over.

VOA: special.2010.01.12

It corresponds with the end of an interval known as the Medieval Warm Period.

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Few will dispute that the naturally occurring Medieval Warm Period was good for the human condition and the biosphere.

FORBES: The Black Death: Longing For The Good Old Days

Famine and plague, which had largely disappeared during the Medieval Warm Period, became the norm rather than the exception.

FORBES: In Which We Gently Correct James Taylor