The Medieval warm period and Little Ice Age

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The Medieval warm period and Little Ice Age

Solar Output

During the period 1645–1715, in the middle of the Little Ice Age, there was a period of low solar activity known as the Maunder Minimum. There is a still very poor understanding of the correlation between low sunspot activity and cooling temperatures.

Volcanic Activity

Throughout the Little Ice Age, the world also experienced heightened volcanic activity. When a volcano erupts, its ash reaches high into the atmosphere and can spread to cover the whole Earth. This ash cloud blocks out some of the incoming solar radiation, leading to worldwide cooling that can last up to two years after an eruption. Also emitted by eruptions is sulfur in the form of SO2 gas. When this gas reaches the stratosphere, it turns into sulfuric acid particles, which reflect the sun's rays, further reducing the amount of radiation reaching Earth's surface.

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The 1815 eruption of Tambour in Indonesia blanketed

the atmosphere with ash; the following year, 1816, came to be known as the year without summer, when frost and snow were reported in June and July in both New England and Northern Europe. Other volcanoes that erupted during the era and may have contributed to the cooling include  (1580 ),  (1641),  (ca. 1660), and I also think the volcano that has recently erupted the Iceland had a big impact in Europe.

One Disadvantage was the Little Ice Age changed the way that people lived ...

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