Beautiful doesn’t make it true

Well... no, the question raised is clearly about CO2 and nothing but CO2. How much do volcanic ash clouds affect the planet's albedo? How much precious fossil fuel do the planes collectively consume? Not relevant.

This author says, "they emit almost completely clean CO2 (note that bar global warming, CO2 isn’t considered harmful)" ... To my ears, that's a major understatement ("bar global warming"). I'm almost inclined to think it's more partisan than the original post, to be so dismissive of climate change.

But beyond that, the point that seems most incongruous is the suggestion that because volcanos emit a more explicitly toxic gas (S02) that we shouldn't have an awareness of our own emissions and their effect on the environment. By comparing it to a volcano's emissions, I am simply impressed by the scale.

I think you really have to read into this to derive a moral/political statement. Nobody is trying to hide the effects of S02.

So if you are afraid of global warming you should welcome every volcano eruption with joy as its SO2 emission counter-effects influence of many millions of tons of CO2.

I don't think they intentionally lie, but their infographics are often misleading at best, and give people a false sense of understanding and knowledge.