The definitive cause of little ice age temperatures

Analysis of the Central England Instrumental Temperatures data set (1659-present) has provided the answer as to the cause of the decreased temperatures during the Little Ice Age (LIA) (and undoubtedly, also those of all other Ice Ages).

The decreased temperatures were caused by the injection of reflective (dimming) Sulfur Dioxide (SO2) aerosols into the stratosphere from extensive occurrences of VEI4-VEI7 volcanic eruptions.