The Little Ice Age
In this lecture, Andy Skuce explains what the so-called “little ice age” was and what caused it. Most importantly, natural factors coming out of the little ice age cannot explain our current global warming. A recent paper “Frost fairs, sunspots and the Little Ice Age” clarifies the relationships between solar activity and ice ages: https://academic.oup.com/astrogeo/article/58/2/2.17/3074082