What 400 ppm of CO2 in the atmosphere looks like

The results are in, and it looks like this.

1what_400_PPM_looks_like

UPDATE: By popular request, our representative to the “Union of Concerned Scientists” has been added to panel #2 at top. – Anthony

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May 7, 2013 11:20 pm

george e. smith says:
May 7, 2013 at 11:06 pm
So would somebody please put in quotation marks what if anything I actually said, in relation to whatever this post by whoever it was is.
Can’t say for sure , but I think he is referring to Y2K night.

May 7, 2013 11:38 pm

Any chance of an, “I Survived” T-Shirt? There’s a couple of Greenies I want to wind up.

acementhead
May 7, 2013 11:41 pm

Ric Werme at 10:14 pm
is correct of course.
Very poor performance on my part and I apologise to everybody.
As self imposed punishment I shall not post again for a month.

sophocles
May 8, 2013 12:06 am

Olaf Koenders says:
May 7, 2013 at 10:42 pm
Vikings colonised and farmed Greenland 1000 years ago, why
did they leave 300 years later?
===================================================
Because it got cold. (Wolf Minimum got going about 1280). Not all
left; the ones who stayed, died out about 1415, from starvation.

May 8, 2013 12:19 am

Perhaps the 400 bearier won’t be crossed this year above the margin of error
– What’s the margin of error on the daily readings ?
unless the 400 barrier is crossed by that margin of error it doesn’t count.
-anyway so far it has not crossed the 400 reading on any daily reading .. and there is a good chance that it won’t cross until next year as we will shortly past the annual peak.

May 8, 2013 1:11 am

The Debunker No 2 BS (@No2BS) says:
May 8, 2013 at 12:19 am
Perhaps the 400 bearier won’t be crossed this year above the margin of error
– What’s the margin of error on the daily readings ?

The margin of error of the measurements are less than 0.2 ppmv, but the “problem” is the quite huge change over the seasons: from less than +/- 1 ppmv in the SH up to +/- 8 ppmv in the far north (Barrow, AK). Therefore one “corrects” for the seasonal variability (based on the four previous years) to show the average monthly increase. The 400 ppmv of the averaged seasonal corrected trend is not yet reached, but may be reached in a few months.

AndyG55
May 8, 2013 1:11 am

Toward 700ppm… and beyond ! :-))))))

AndyG55
May 8, 2013 1:12 am

Onward and upward. :-)))))

AndyG55
May 8, 2013 1:23 am

The Y2K scare was fun.. I actually was there, at Optus, (located in Chatswood, Sydney, Australia)
I was part of the team that upgraded the WHOLE of Optus from 286’s and 386’s to the first Pentiums, and all because of the Y2k scare..
We rolled out some 3500 desktops and 1500 Laptops in a 3 month period !!
Compaq iirc.
Long, late hours…. but it was……
Nice while the money lasted 🙂

BruceC
May 8, 2013 1:24 am

theMountinman [sic] aka Sean Pedersen
May 7, 2013 at 8:15 pm

Did you know that it’s also a myth that Ostriches bury their heads in the sand?
1.Ostriches typically live in arid areas.
2.Arid areas have dry surfaces.
3.Dry surfaces need significant digging in order to create a depth in which an Ostrich can “bury” its head.
When an ostrich senses danger and cannot run away, it flops to the ground and remains still, with its head and neck flat on the ground in front of it.
Because the head and neck are lightly coloured, they blend in with the colour of the soil. From a distance, it just looks like the ostrich has buried its head in the sand, because only the body is visible.
But they do dig holes in the dirt to use as nests for their eggs. Several times a day, a bird puts it’s head in the hole and turns the eggs (female by day, male by night). So it really does look like the birds are burying their heads in the sand!

still frozen in Canada, ldd
May 8, 2013 1:27 am

@Olaf Koenders now that was very succently put.

AndyG55
May 8, 2013 1:29 am

And before that, I had a contract to “find” all the computers in CSIRO branch in North Ryde that might be susceptable to the “Y2K bug”. 5 weeks chatting and coffee’ing. And paid very nicely, thankyou. 🙂
286’s and 386’s running specialised user written codes for controlling equiptment.
Talked to one of the guys a few year later.. They still had their 386 running on the equipment, and were using the Pentium for a mailserver.

AndyG55
May 8, 2013 1:31 am


It is only climate scientists that bury their heads in the sand… and their disciples !!

beesaman
May 8, 2013 1:35 am

I would recommend ‘When Prophecy Fails’ by Festinger et al, to the doom mongers as it will explain the processes you are about to go through….

May 8, 2013 1:40 am

Handy CO2 pie:

Alexej Buergin
May 8, 2013 1:43 am

If you have 2500 molecules of air, one of them is CO2.

Henry Galt
May 8, 2013 1:48 am

We did direct Y2K testing from early 1998 onwards. OK, it was on (mostly) stand-alone IBM clones.
Press Del to enter BIOS.
Set clock to 11.56PM Dec 31st 1999.
Save and exit.
Wait for machine to boot and watch the clock roll over to Jan 1st 2000.
Did it fail?
Reboot.
Did it fail?
Every single machine I built in those heady days, and tested, passed this test.

Alexej Buergin
May 8, 2013 1:51 am

400 only looks interesting because we use the decimal system (we have 10 fingers).
In Ducksburg, where inhabitants only have 8 fingers, they use the octal system. Instead of a million m (10^6), they use Duckmillion DM(8^6). So the CO2 concentration there is 105 ppDM, which they write 151 ppDM.
(151=64+5*8+1)

Henry Galt
May 8, 2013 1:59 am

AHhhh, the upgrade from the 128k 286XT to the 2MB 386DX33.
Nostalgia isn’t what it used to be, but surely there has not been such a (single) commensurate (cost and flops) increase in personal desktop computing since?

mogamboguru
May 8, 2013 2:11 am

Okay,
could someone put troll atarsinc to rest, please?

guenier
May 8, 2013 2:26 am

Toby Nixon (4:36 PM yesterday) is right that “Y2K really DID have the potential for a lot of systems to fail”. Essentially, it was a problem that affected “legacy” software, often hidden within millions of lines of code, typically used by large organisations. Fixing it was a massive, boring and unglamorous undertaking. And it was largely, but not entirely, successful. (The idea that some countries – such as Italy and South Korea – did “little to prepare for Y2K” is a myth.)
See this:
http://fm2x.com/The_Century_Date_Change_Problem.pdf

CodeTech
May 8, 2013 2:57 am

Awesome thread…. had me rolling on the floor in a few spots…
Mountinman takes a prize, or something. Right from misspelling what I assume was intended to be “MountainMan” to swallowing the entire Chicken Little “Sky Is Falling” story hook, line and sinker. Awesome!
Meanwhile, Olaf Koenders’ post at May 7, 2013 at 10:42 pm could be packaged up and widely distributed as “Why I Am A Skeptic, And You Should Be Too!”
Meanwhile, the continuous undertones of Y2K, which really worried a lot of people who don’t know much about I.T. had me laughing. I also had some contracts in 1999 that were ridiculously lucrative. My favorite was the company selling a heavily used pharmacy operating system, you know the ones, they type in your prescription and check for interactions and stuff. They wrote it in the 80s as a DOS app, and LOST THE SOURCE CODE! Turns out on Jan 1, 2000 it thought it was 1900 and deleted all records more than 10 years into the future. A 2 year crash development program with 12 coders and they had rewritten it as a Windows app. October of 1999 we were rolling it out in small town and big city pharmacies across Western Canada, bugs and all. I couldn’t help but laugh the whole time I was doing that. They’re gone now. Sad.
The best part will always be the ones who think that embedded controllers, like the computer that runs my car engine, care in any way whatsoever about the date. Likewise with telephone switches and…. OH… oil pipeline valve controllers… awesome.
It must be a sad and terrifying existence, to believe that our technology infrastructure is so painfully fragile… like it was anyone other than the most inexperienced amateurs that were blindsided… since anyone writing anything that REALLY matters were always considering something like the date.
And that brings us to the take home message…. it must also be a sad and terrifying existence when you believe that small increases in CO2 are going to cause mayhem and catastrophe with climate. I sorta pity these people, because they’ve been so effectively and mercilessly pummeled with this story. They can’t help but believe… because, you know, ALL the scientists say it’s so (except those eeeeeeevil oil company jerks).

May 8, 2013 3:25 am

During the Neoproterozoic era, 750 million years ago, CO2 concentration in the atmosphere was at least 30%, or 750 times today’s concentration. In the Cambrian era, 550 million years ago, when the calcite corals first achieved algal symbiosis, it was 1%, or 25 times today’s concentration.In the Jurassic era, 175 million years ago, when the more delicate aragonite corals came into being, it was 0.6%, or 15 times today’s concentration. Now it’s not quite 0.04%. If we carry on business as usual, it will be 0.07% by the end of the century. A little perspective goes a long way.

AndyG55
May 8, 2013 3:34 am

mogamboguru says:
could someone put troll atarsinc to rest, please?
His mind is already well asleep.. what more can one do ?? !!