Those who deny climate change caused by mankind tend to cite the so-called “Little Ice Age” as one of their arguments to defend the hypothesis of the natural origin of climate changes. The Little Ice Age, as it is known, to distinguish it from the great ice ages, covers a period from 1350 to 1850 approximately, when there was a significant lowering of the global average temperature with respect to the five previous centuries. … Nevertheless, a few days ago, an investigation was published by the University College of London[1] that explains that the Little Ice Age was also the result of human activity. And one more ruthless than the combustion of fossils or deforestation.