Ancient Irish texts show volcanic link to cold weather

Researchers have been able to trace the impact of volcanic eruptions on the climate over a 1200 year period by assessing ancient Irish texts. The international team compared entries in these medieval annals with ice core data indicating volcanic eruptions. via Pocket http://www.bbc.co.uk/news/science-environment-22786179#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa