So we have three coincidences.
1, the discovery of the volcanoes,
2, that they (at the same time) become more active and
3, (at the same time) atmosphere CO2 concentration increases by more than 40%
And yet, despite several hundred years of evidence, data and observation (and the predictions that certain laws of physics then provide) that increasing CO2 by 40% (plus other anthro changes) will (very likely) cause atmosphere warming in line with what we see you say the ice is being melted by volcanoes that (just when we discover them) have suddenly got more active?
Like I say, I beg to differ....