Worldwide CO2 Concentrations have Surpassed 410 Parts Per Million

a reply to: NorthernLites

Please, assuage my ignorance. While demonstrating your erudition.

a reply to: Phage

I want you to find the laboratory standard for testing of C02 in ice cores and look at it.

I've seen it. It's not well done.

And yeah, you are ignorant if you think ASTM is for consumer goods and services only.

You ever had a real job or are have you worked for the guv your whole career?

a reply to: NorthernLites

Can you compose a single post without attempting an insult? Explicitly or otherwise?

You've been spanked once, so far.

a reply to: Phage

Actually, we are seeing the atmosphere today, after being encased in ice for 800,000 years. Not the atmosphere from 800,000 years ago. What's the difference? Maybe none, but maybe some.

What chemical adjustments have been made over the span of 800,000 years? What leached form air to ice or from ice to air over that time? It's a tiny bubble of air, so how many atoms would it take to make a difference? We have no way to run a controlled study on a known sample to determine that, because it would take 800,000 years.

I do not know if that actually makes an appreciable difference or not; I actually suspect not. I am only pointing out that we do not know for certain.

TheRedneck

a reply to: TheRedneck

Absolute certainty cannot be claimed, but every effort is made to validate the results. Matching results from different samples and different labs, as well as validation with recent samples and current conditions. It is not likely that they are off by significant factors. Any such anomalies would be apparent in the data. These guys know their chemistry.

The simplest, most compelling evidence demonstrating that Scholander accurately foresaw the utility of ice as a bottle for old air is provided empirically. For the key atmospheric trace gases, such as CO 2 ,CH 4 and N 2 O, and for tens of thousands to hundreds of thousands of years we now have multiple records generated by different labora- tories on different continents using cores from sites with different accumulation rates, temperatures and impurity loadings, often stored, handled and analyzed in different ways, yet yielding the same history within the combined analytical and dating uncertainties (e.g. see Jansen and others 2007, especially figure 6.4; Ahn and Brook, 2008). Furthermore, this record overlaps with the instrumental measurements of the free atmosphere, again with beautiful agreement (Neftel and others, 1985; Pearman and others, 1986). There is no plausible way that this agreement could be produced if there are significant problems with the entrapment, storage, recovery or reading of the atmospheric signal in the ice.

www.igsoc.org...

a reply to: Phage

Wow, Phage, that was the most well-presented and logical argument I have seen you post in a while. Nice to have you back!



I concur until such time as additional evidence comes to light... which may be never.

TheRedneck

a reply to: Phage

Your thinking of Nitrogen.

The Nitrogen Fixation Cycle.

A fairly finite reallocation system.

Methane and Carbon Dioxide are
a different model system.

It's the carbon molten and off-gassing from 200 miles under the west, like Yellowstone

in Forbes 2017 article