Sciencescience

Wed Sep 25, 2019, 04:54 AM

carbon dioxide reasonably new discovery

https://www.americanthinker.com/articles/2019/09/carbon_dioxide_known_only_since_1930.html

Carbon Dioxide Known Only Since 1930

We do not know how much carbon dioxide was in Earth's atmosphere prior to the 1930s. Devices to measure carbon dioxide went through a difficult, slow, irregular development. Reliable devices to measure carbon dioxide were available around 1930.

"The measurement of carbon dioxide (CO2) was first developed in the early 1900s; however, it was complex and of limited clinical use. " The technology was slowly developed and produced a useable machine only around the year 1930.....


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Arrow 10 replies Author Time Post
Reply carbon dioxide reasonably new discovery (Original post)
imwithfred Sep 25 OP
rampartb Sep 25 #1
imwithfred Sep 25 #2
rampartb Sep 25 #3
imwithfred Sep 25 #5
SatansSon666 Sep 26 #8
Cold Warrior Sep 25 #4
SatansSon666 Sep 25 #7
oflguy Sep 26 #10
SatansSon666 Sep 25 #6
oflguy Sep 26 #9

Response to imwithfred (Original post)

Wed Sep 25, 2019, 05:23 AM

1. samples of atmosphere are available from many thousands of years ago unril today

we can measure the co2 in the air breathed by the pharaohs using the most modern spectrometers.

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Response to rampartb (Reply #1)

Wed Sep 25, 2019, 05:40 AM

2. ".....samples of atmosphere are available....."

The article mentions carbon dioxide trapped inside of ice, such as in Antarctica, for ostensibly thousands of years, but they're not accurate samples. Take a balloon, fill it with helium, let it lay around a day or two. The helium seeps out. Same thing with carbon dioxide in ice.

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Response to imwithfred (Reply #2)

Wed Sep 25, 2019, 06:48 AM

3. oh, air trapped in ice cores is reliable, and is only one of many sources of ancient air.

every lump of coal has a story for those interested enough to read.

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Response to rampartb (Reply #3)

Wed Sep 25, 2019, 03:13 PM

5. Excuse me sir, but

".....We cannot measure carbon dioxide content of the Earth's past from air pockets in ice core samples. First, gases can diffuse through solid walls. Buy a helium balloon. A week later the balloon will no longer be floating but on the ground. The helium gas diffuses out through the walls. We know that gas does not stay unchanged even in a closed container.

Second, over thousands of years, gases in the ice core will be changed by non-organic chemical reactions or by microscopic plant life like algae or microbes. As the weight of accumulating layers presses from above, gases will be forced into the ice core.

Bacteria form in the ice releasing gases even in 500,000-year-old ice at great depth.....

- - - - -

All the sources for such claims are to be found in the article.

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Response to imwithfred (Reply #5)

Thu Sep 26, 2019, 09:03 AM

8. So let me get this straight.

They make a claim to what will happen to the gas. Then at the end they say the only way to know is to wait thousands of years.
Pretty convenient.
They know what will happen to the trapped gas, but scientists have to trap the gas and wait thousands of years.
Lol.

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Response to imwithfred (Reply #2)

Wed Sep 25, 2019, 06:57 AM

4. Wow! Great scientific find there, imwithfred!!!

Can you provide a peer-reviewed scientific article that says CO2 in ice escapes just like helium from a balloon?

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Response to Cold Warrior (Reply #4)

Wed Sep 25, 2019, 07:59 PM

7. I particularly like their conclusion.

So, to use trapped gases from ice core samples, we would -- if we were doing real science -- have to put a known composition of gas into an ice air pocket, then come back thousands of years later, and re-test the gas composition. That would be the kind of real science that the protesting students could have learned had they stayed in school.

lmfao..

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Response to Cold Warrior (Reply #4)

Thu Sep 26, 2019, 11:34 PM

10. I looked

But I can't find a peer-reviewed scientific article that says you know what you are talking about.

So much for peer reviewed scientific articles?

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Response to imwithfred (Original post)

Wed Sep 25, 2019, 07:52 PM

6. It's effects were confirmed then.

They were already calculating the effects of CO2 and climate in 1896.
without knowing how much was there, (they had an idea by using the moons reflected sunlight rays) and were able to calculate that a doubling a CO2 could raise surface temperatures by 4-6 degrees celcius.
Of course, within the last 110 years it is a lot more accurate, but to say it's only been known since the 30s is bad reporting. Click-Bait type shit.
Especially when they contradict themselves right in the article.
Now since American Thinker doesn't link to any scientific research to back up their claims, we can easily chalk it up to hyperbole and alarmist rhetoric.

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Response to imwithfred (Original post)

Thu Sep 26, 2019, 11:32 PM

9. Did you know?

Current CO2 levels are measured on a mountain where there is an active volcano?

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