The results are in, and it looks like this.
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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At the height of the last glaciation Carbon was 4000 ppm, end of story.
Be that your pooch?
Wow! 400 ppm. Then I better put a warning here. To those of you from southern locations visiting us up north for the first time, those dancing lights in the night sky is NOT the world burning up. Those are Northern Lights. Nothing to panic over. That is very normal.
Dogs RULE!
Heh, heh, thanks for the chuckle, An–th–y (so won’t go to Spam bin).
Aaand, What Algore THINKS (vs. merely “says”) it looks like = $$$$$$$$$$$$$$
A little dated & not a Topher-quality on screen performance, but still valid.
The smile on the plants is the best part.
Well, Y2K really DID have the potential for a lot of systems to fail — but people mobilized, lots of old COBOL programmers went to work, “year” fields in databases and software were expanded to four digits, and it ended up having virtually no impact at all (although I did convince my wife to install a 20KVA natural-gas generator in the backyard “just in case” :-).
CO2 at 400ppm has NO such potential, and so to compare it to Y2K is really giving it more credit than it deserves.
Thanks for sharing the nicely done video — it gets its point across just fine.
BUT….. those tiny red things are MAGIC BEANS and, well, you know what MAGIC can do. @ur momisugly_@ur momisugly Mm, hm. Pretty much anything.
LOL
DavidG says:
May 7, 2013 at 4:23 pm
———————————
Not sure what you mean, David, but the last glacial advance ended around just 11,400 years ago, although technically we’re still in a glacial period of geologic history. Ppm of CO2 at the last glacial maximum (c. 20,000 ya) was near plant starvation level of 150 (maybe 190 ppm).
There have been other glaciations since CO2 was as high as 4000 ppm. I wonder if you’re thinking of the Ordovician Glaciation, which may have started with CO2 as high as 8000 ppm. During the Carboniferous/Permian glaciation, it was higher than during the Pleistocene, but by how much is controversial. One estimate is as low as 313-344 ppm.
http://www.ncbi.nlm.nih.gov/pubmed/12235372
Thank you to (oops!) — MILODON HARLANI!
You’re welcome. They’re magic because released by evil humans.
Toby Nixon says: May 7, 2013 at 4:36 pm
…(although I did convince my wife to install a 20KVA natural-gas generator in the backyard “just in case” :-).
Stroke of genius, that. Did you tell her you needed some tools, to go along with it?
This morning it felt chilly but now it feels nice.
David G
Any links on that info about co2 4000 ppm at the end of the last glaciation, I haven’t heard that before.
Thanks
what it looks like in the data chart depends entirely on the scale used.
Guess what happens at 666 ppm of CO2 (in case of someone survives the 400 ppm)!
Imagine a square meter (1,000,000mm) one millimeter thick. Now color the square millimeter free space around each of the 400 CO2 molecules so you can see what it looks like to a photon traveling at the speed of light. Also, consider what the probability of that photon actually striking one of those molecules rather than passing through the free space or non-absorbing gas molecules.Then continue the process through the millions of such air thicknesses that are expanding in volumn with altitude. Now introduce water vapor and all those other photons and you may be able to imagine a model that may give you some idea of the possible effect of CO2 on the rate of energy loss to space.
Was that just some random unqualified dog or was that an esteemed member of the Union of Concerned and Bedwetting Scientists?
Looks like warmer weather in Kalamazoo, MI, than in Richmond, VA, leaves bursting from twigs, flowers in bloom, clear water in the lakes and lots of bugs collecting on the front of the car. If that is climate disaster, I’ll take it. If it is just a warm spell, I’ll just enjoy it.
Did anyone notice those brilliant red eyes on Hansen’s picture?
Hmmm.
Anthony, it’s worse than I thought. I had a sinus headache when I awoke this morning, and it’s persisted all day. Must’ve been caused by 400ppm. [sarc off]
I believe that for plants the ideal point is around 1,000 to 2,000 PPM depending on the plant. Above that the plant can process any more CO2. Thus as we go above 400 PPM, plants continue to do better in terms of growth. Simple logic says that as we go higher in CO2, the plants create a negative feedback system to lower the CO2 level. After all, increased growth results in more plant material pulling CO2 from the air.
This does raise an interesting point, IF we go above 2,000 PPM, wouldn’t the increased CO2 avoid the negative feedback increase from plants? Now that we should worry, it would take a long long time to reach that point.
Sorry, typo – Above that the plant can NOT process any more CO2.
400ppm!!! Pffft. 450ppm pffft. Here are the devastating effects of over 1,200ppm. This is why those vegetarian dinosaurs of the Jurassic could not find any vegetation to eat. This is why the biosphere is greeningnot. Grrrrr!
Please avert your eyes.
http://youtu.be/K_477VxU-WI
DavidG says:
May 7, 2013 at 4:23 pm
“At the height of the last glaciation Carbon was 4000 ppm, end of story.”
Wrong.
The Last Glacial Maximum (LGM) was between 26,500 and 19,000–20,000 years ago, and CO2 was not only not 4000 ppm, it was far below today’s value.
The last time carbon dioxide levels were as high as they are today — and were sustained at those levels — global temperatures were 5 to 10 degrees Fahrenheit higher than they are today, the sea level was approximately 75 to 120 feet higher than today, there was no permanent sea ice cap in the Arctic and very little ice on Antarctica and Greenland,” according to UCLA’s department of Earth and space sciences and the department of atmospheric and oceanic sciences.
JP
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