Scienceclimatehistoryvolcanoiceland science-362-6410-ad-536-worst-climate-year. Eruption made 536 ‘the worst year to be alive’ Ask medieval historian Michael McCormick what year was the worst to be alive, and he’s got an answer: “536…. But 536. … A massive eruption—perhaps in North America, the team suggested—stood out in late 535 or early 536; another followed in 540. By Ann Gibbons Nov 16th, 2018 Previous Next