> This article is claiming just that. This article claims that the volcanic eruption caused cooling, not warming. It mentions "a summer without heat" and that

> This article is claiming just that. This article claims that the volcanic eruption caused cooling, not warming. It mentions "a summer without heat" and that "15 of the 16 coldest summers recorded between 500 BC and 1,000 AD followed large volcanic eruptions". This cooling effect is caused by particulates, not CO2.