Moron: "a single volcanic eruption releases more polution than all of mankind has throughout our history combined"
me: False (provides evidence)
Moron: The problem is that a lot of the data surrounding human CO2 output has been based on lies and misinformation over the years, so there's really no way to affirm they are using reliable and factual data. They may be right. No way for either side to know for sure.
It must be very curious to live in a world of nebulous clouds where nothing can be known.
Luckily we are not in that position. Just as a for instance, "In 2016, about 143.37 billion gallons (or about 3.41 billion barrels1) of finished motor gasoline were consumed2 in the United States"
Very few people are using it to fill their swimming pools, so if it is combusted in motor vehicles, each gallon of fuel produces "About 19.6 pounds of CO2"
(140 billion gallons) times (20 pounds of CO2/gallon) = 2800 billion pounds = more than 1 billion tons of carbon dioxide.
From my first link, "A 2013 review attempted to estimate the annual contribution of CO2 emitted from all volcanoes (active and passive) and other tectonic sources on Earth per year, coming up with a figure of 540 megatons per year" i.e. 0.54 billion tons
So the US consumption of motor fuel alone produces more CO2 than the output of all the world's volcanoes.
This is how we can know that your original statement is just false, and there is a way to know for sure.