The Little Ice Age was a period from the 14th to 19th centuries characterized by colder global temperatures. Colder weather negatively impacted agriculture in Europe, leading populations to depend more on beer and liquor instead of vulnerable grape vineyards. The damp, cold conditions also contributed to widespread famine and disease outbreaks like the plague. Potential causes of the Little Ice Age included reduced sun radiation, volcanic eruptions, and changes in ocean currents.