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400 PPM: Carbon Dioxide in the Atmosphere Reaches Prehistoric Levels
Scientific American ^ | May 9, 2013 | David Biello

Posted on 03/19/2014 6:15:30 AM PDT by Mrs. Don-o

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To: Mrs. Don-o
Let's put "400 PPM" in proper perspective:

(I did that sketch for my granddaughter back when atmospheric CO2 was "only" 360 PPM.)

Today the claim is 400 PPM.

~~~~~~~~~~~~~

If you took off on Runway 13R-31L at JFK -- and traveled 400 PPM of the distance to LAX, where would you be?

(See my next comment...)

41 posted on 03/19/2014 6:59:27 AM PDT by TXnMA (Remember the Alamo! Remember Goliad! REPEAT San Jacinto!!!)
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To: Mrs. Don-o

With any substance other than CO2, a 0.0004 concentration would be referred to as a “trace”. Politics is trumping science, big time.


42 posted on 03/19/2014 7:04:58 AM PDT by JimRed (Excise the cancer before it kills us; feed & water the Tree of Liberty! TERM LIMITS NOW & FOREVER!)
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To: Mrs. Don-o
I endorse your proposal.

Let's organize ‘The Great Carbon Belch’.

Everyone start their cars and let them run in the driveway until the tanks run dry for a week straight. Same with the lawn mowers.

Let jet engines idle at airports, and refuel them in the air.

I'd wager the CO2 sensor is probably located over a fumarole in the Kilauea volcano.

43 posted on 03/19/2014 7:07:26 AM PDT by RinaseaofDs
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To: eCSMaster

:o)


44 posted on 03/19/2014 7:08:36 AM PDT by Mrs. Don-o (Point of view.)
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To: PapaBear3625

Just you wait until my compost starts cookin’....


45 posted on 03/19/2014 7:09:59 AM PDT by Mrs. Don-o (Point of view.)
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To: Moonman62; All

I think it’s clear that there is a causal relationship between CO2 levels and temperatures. I don’t think there is a reasonable way to doubt that, just look at Venus for goodness sakes.

The question really is: does our contribution to the total CO2 amount in the atmosphere have a significant impact on the climate?

One factor the environmentalists seem to neglect is the very history they point to in an attempt to bolster their theory. In the article above and the graph you have provided, one can clearly see a natural trend towards rises and falls in CO2 amounts throughout recent geologic history.

A truly reasonable scientist would look at these data and conclude, if anything, we may indeed be in a warming trend but this trend is probably due to some as of yet unidentified factor that has clearly operated in the past, and had nothing to do with humanity.

Let’s examine your graph again. The period between the global increase in temperatures seems to be rather regular, with a period varying between 10 and 20,000 years.

Armed with this information, and the fact the period observed occured at least 4 other times with this same frequency, and the last spike occured about 12,000 years ago, if anything we are left with the distinct possibility (if not probability although admittedly statistical analysis cannot be done given such a small sample size) we are headed towards a warming trend, but not one caused by man’s influence rather one perfectly natural for this geologic epoch.

The truly vital and critical question to ask and answer is: is our CO2 output a significant portion of the total CO2 in the atmosphere? I have never seen this question addressed directly, in a rigorous way, and therefore I suspect the truly scientific and mathematic answer is “no”. I suspect this because it’s never discussed, this specific mechanism of man’s contribution and it’s effect on the environment, and the fact (if indeed it is a fact which I again suspect it is) that our contribution is negligible doesn’t fit too well with the agenda. The agenda being of course population control via the state.

Because “everyone” (everyone by implication who is smart) knows: humans=”bad”.


46 posted on 03/19/2014 7:12:15 AM PDT by FourtySeven (47)
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To: TXnMA
So post it, already!

But first let me get in my guess:

At the end of the runway?

47 posted on 03/19/2014 7:13:51 AM PDT by Mrs. Don-o (Point of view.)
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To: Mrs. Don-o

Perhaps, maybe, could be, most likely, possibly, etc.


48 posted on 03/19/2014 7:15:21 AM PDT by headstamp 2 (What would Scooby do?)
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To: Cold Heat

Two words:
Dinosaur Flatulance.


49 posted on 03/19/2014 7:15:41 AM PDT by Ouchthatonehurt ("When you're going through hell, keep going." - Sir Winston Churchill)
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To: Mrs. Don-o

ANSWER: If you traveled 400PPM of the distance from JFK to LAX, You would still be on or over the JFK runway -- with 9,283 feet (1 3/4 miles) of runway remaining!

And the warmalarmists claim that minuscule amount of carbon dioxide will destroy us...

Bravo Sierra!!!

50 posted on 03/19/2014 7:16:32 AM PDT by TXnMA (Remember the Alamo! Remember Goliad! REPEAT San Jacinto!!!)
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To: Mrs. Don-o

OK. So during pre-history, the Co2 was high.
What natural phenomenon caused that, dear scientists?
And can you prove to me that that natural phenomenon is no longer in existence?
No you can’t.


51 posted on 03/19/2014 7:22:33 AM PDT by I want the USA back (Media: completely irresponsible traitors. Complicit in the destruction of our country.)
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To: TXnMA
I got it! Whoopee!

Do I get a cookie?

52 posted on 03/19/2014 7:23:26 AM PDT by Mrs. Don-o (Point of view.)
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To: Mrs. Don-o
...after nightfall shut down photosynthesis for the day in Hawaii, carbon dioxide levels in the atmosphere touched 400 parts-per-million there for the first time...

... the hourly levels at Mauna Loa will soon drop as spring kicks in across the northern hemisphere, trees budding forth an army of leaves hungrily sucking CO2 out of the sky.

While I am neither a "Climate Scientist", nor have I played one on TV nor did I spend last night at a Holiday Inn Express, it does appear to me that, according to the above statements, atmospheric CO2 concentration is a least as dependent on the amount of plant growth as it is on SUV's & fossil fuel burning.

Long, harsh winters = higher CO2 concentrations.

Comments?

53 posted on 03/19/2014 7:23:27 AM PDT by BwanaNdege
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To: BwanaNdege
... the hourly levels at Mauna Loa

OK, this confirms my suspicions. So they locate the CO2 sensor next to a volcano to be representative of the whole planet?

I live near Pittsburgh. Every year they trumpet how our air is STILL among the dirtiest in the country, which I also don't believe. Until a few years ago, the air quality sensor was located...(and I'm not joking)...above the bus entrance to the Greyhound station!
54 posted on 03/19/2014 7:27:56 AM PDT by BikerJoe
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To: BikerJoe
... the hourly levels at Mauna Loa OK, this confirms my suspicions. So they locate the CO2 sensor next to a volcano to be representative of the whole planet?

Before I get flamed, sorry, I forgot, isn't Mauna Loa inactive?
55 posted on 03/19/2014 7:29:51 AM PDT by BikerJoe
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To: Mrs. Don-o
Good guess! And good sense of perspective!

Ummm... the only "cookies" I have on hand are -- "Milk-Bone" brand. [So, I doubt you'd want one...] '-)

56 posted on 03/19/2014 7:31:04 AM PDT by TXnMA (Remember the Alamo! Remember Goliad! REPEAT San Jacinto!!!)
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How much of the “Greenhouse Effect” is caused by human activity?

It is about 0.28%, if water vapor is taken into account— about 5.53%, if not.

This point is so crucial to the debate over global warming that how water vapor is or isn’t factored into an analysis of Earth’s greenhouse gases makes the difference between describing a significant human contribution to the greenhouse effect, or a negligible one.

http://www.geocraft.com/WVFossils/greenhouse_data.html


57 posted on 03/19/2014 7:31:46 AM PDT by listenhillary (Courts, law enforcement, roads and national defense should be the extent of government)
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To: BikerJoe

That is another factor to consider here in the final analysis. Where are these sensors located?

I think the story in the OP about the one located near a volcano is laughable. I’d like to THINK this obvious bias is accounted for in some way.

Somehow I don’t think it is. Call me cynical.


58 posted on 03/19/2014 7:32:45 AM PDT by FourtySeven (47)
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To: Mrs. Don-o
The article says "...the last time CO2 levels are thought to have been this high was more than 2.5 million years ago, an era known as the Pliocene, when the Canadian Arctic boasted forests instead of icy wastes. The land bridge connecting North America and South America had recently formed. The globe’s temperature averaged about 3 degrees C warmer, and sea level lapped coasts 5 meters or more higher."

However,

"During the ice ages of the Pleistocene Epoch, global sea levels fell significantly in many areas around the world as the Earth's water and precipitation became frozen in large continental ice sheets and glaciers. As these ice sheets and glaciers grew, global sea levels fell and in several places across the planet different land bridges became exposed. The Bering Land Bridge between eastern Siberia and Alaska was one of these."

A Geographic Overview of the Bering Land Bridge

Facts? Who needs facts? Just make up things as you go along. After all, we're trying to save the planet! It's for the children, right?

59 posted on 03/19/2014 7:33:25 AM PDT by BwanaNdege
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To: Mrs. Don-o

I’m waiting for the OXYGEN level to hit 30% like in prehistoric times! Think of the grass fires!


60 posted on 03/19/2014 7:49:01 AM PDT by Ruy Dias de Bivar (Sometimes you need 7+ more ammo. LOTS MORE.)
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