Ah, Forbes always was an authoritative source on climate change. I am not in the mood for battling over the authors who are unable to consider 250 000 underwater volcanoes. You know, 250 000 underwater volcanoes cannot be wrong.
That's a nice cherry-picking over the sources you're doing here.
From Scientific American, quoting USGS:
> According to the U.S. Geological Survey (USGS), the world’s volcanoes, both on land and undersea, generate about 200 million tons of carbon dioxide (CO2) annually, while our automotive and industrial activities cause some 24 billion tons of CO2 emissions every year worldwide
But I guess you're more knowledgeable on the subject than the US geological survey?
> On average, human activities put out in just three to five days, the equivalent amount of carbon dioxide that volcanoes produce globally each year
https://www.snopes.com/fact-check/volcano-carbon-emissions/
https://www.climate.gov/news-features/climate-qa/which-emits...
https://www.skepticalscience.com/volcanoes-and-global-warmin...
https://www.forbes.com/sites/startswithabang/2017/06/06/how-...
https://www.scientificamerican.com/article/earthtalks-volcan...