"It was very clear the source of the 43 BC fallout in the ice was the Okmok II eruption." They also matched the tiny shards from Okmok II to tree-ring-based climate records across the world. The decade that followed Okmok II was the fourth coldest in the Northern Hemisphere in the past 2,500 years. But many took place before Okmok II - and are likely related to a smaller eruption of Mount Etna in 44BC. But the climate effects of Okmok II played "an undeniably large role," said the researchers.

Source: Daily Mirror June 22, 2020 18:56 UTC