I can already hear my readers saying “Who?”. Willi Dansgaard was a climatologist who pioneered checking Greenland ice cores and the like for evidence of climate change. From a Classics perspective:
Dansgaard later organised or participated in more than 19 expeditions to the glaciers of Norway, Greenland and Antarctica, and went on to develop ways to date gases trapped in the ice as well as to analyse acidity, dust and other influences on climate, including volcanic eruptions.
Thus, analyses of the acidity levels in ice cores have shown that a particularly large eruption produced of acidic fallout on Greenland for three years roundabout 50BC (possibly supporting accounts of a dimming of the sun after Julius Caesar was assassinated in 44BC, which is reported in the writings of Virgil and Pliny the Elder).
… which is one of the many ‘Bethlehem stars’ for the Classics set (along with Halley’s comet, which doesn’t quite match Julius Caesar’s assassination).
rogueclassicism 