âoe In a 2011 peer-reviewed paper, U.S. Geologic Survey scientist Terry Gerlach summarized five previous estimates of global volcanic carbon dioxide emission rates that had been published between 1991 and 1998. Those estimates incorporated studies reaching back to the 1970s, and they were based on a wide variety of measurements, such as direct sampling and satellite remote sensing. The global estimates fell within a range of about 0.3 ± 0.15 billion metric tons of carbon dioxide per year, implying that human carbon dioxide emissions were more than 90 times greater than global volcanic carbon dioxide emissions.â So, aside from some mega eruptions (you deliberately chose to use a large one as your example??), Humans beat volcanos. Are you even passingly familiar with the truth?

Nope, I don't think WE are learning at all.

Is that a scientific term?

Hows about we start with some basics:
- Do you agree that CO2 in the atmosphere has the ability to impact climate as witnessed by the biosphere?
- Do you believe that additional CO2 in the atmosphere (regardless of source) could have a negative impact on the climate?
- Do you think that if something is bad, having more of it (regardless of how much) is unquestionably harmless?

For what it's worth, I don't think climate change is unambiguously and uniquely caused by human activity. I do think that human activity isn't helpful though, and adding a small amount of something on top of a large amount of something can still be the thing that tips the scales. Sure, if you removed volcanoes, decomposing biomass in swamps etc etc, our impact would be lessened significantly, but we can't exclude those things...

~35 BILLION tons of CO2/year (you are off by a factor of 100 this time, you are getting closer) There's also non-CO2 greenhouse gases, which brings it up to effectively the same as 50 BILLION tons of C02/year. Also, these don't spontaneously go away after a year. Some decompose into something less problematic, but not all. Each year, it's the new additions as well as whatever is left over from last year, the year before that, and so on.

Ok, so it's gone from 'here's the math that proves it doesn't work' to 'trust me bro'. Yeah, that inspires confidence.

5.15*10^18kg is 5.15*10^15 metric tons, which is 5.15 quadrillion, not quintillion? Isn't that approximately the 5.5 quadrillion tons I referred to? You seem to keep throwing numbers out there that are misused. You've already dropped by a factor of 1000, and have another 1000 to go...

I think the argument about the crust being the only earth mass you are considering as in scope is a bit tenuous as well. I think it's safe to say that we aren't too worried about the impact of climate change more than a a few (hundreds?) of meters down as having that much impact on things.

I get it, you don't want to accept it, that's fine, but rocking up and throwing out some specious numbers on a site populated by relatively math literate geeks seems like a dumb use of your time. Wouldn't you do better on facebook or something?

The total mass of Earth’s atmosphere is about 5.5 quadrillion tons, or roughly one millionth of Earth’s mass, according to a number of at least vaguely credible sources (wikipedia, Britannica).

Also, I don't think anyone is claiming that climate change is impacting the Earth's core, so the mass of the planet doesn't really come in to this. We are pretty much exclusively interested in the bits humans/the majority of biosphere lives in, and that's within a couple of hundred feet of ground level, whatever that may be locally.

I worked for CompuServe, many moons ago. As you said, there was a set format for passwords, and they were automatically generated. Was a bit awkward when I was on the phone to a customer doing a password reset, and the generator set it to Stupid_Dunce...