[sokoloff]

Volcanic emissions amount to around 1%, not 1000x the amount of human CO2 emissions per year.

https://www.snopes.com/fact-check/volcano-carbon-emissions/

[wheelerof4te]

The article debunks the CO2 quantity from only one such emission. There are hundreds of active volcanoes on the Earth's surface and possibly thousands more in the oceans.

[sokoloff]

No. It uses research from a 2013 paper that estimated the total annual flux from volcanic sources worldwide. Search for “2013 review” in the article.