There’s a good article on how “ocean acidification claims are misleading – and deliberately so” here: http://www.principia-scientific.org/View-your-user-details.html
Comment on Open thread by ilma630
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Comment on Open thread by ilma630
I would have thought he would have retired by now, to save himself further embarrassment.
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Comment on Mann vs Steyn et al. discussion thread by Marti
Spot on with this write-up, I honestly feel this website needs a great deal more attention. I’ll probably be returning to see more,
thanks for the information!
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Comment on Open thread by wrhoward
dalyplanet
How do we get at pre-industrial ocean chemistry including carbonate mineral saturation states? Good question. You are correct we don’t have direct measurements from prior to the industrial revolution. Briefly,
Main approaches to getting at this question:
1) Back out “anthropogenic” DIC
Orr, et al. (2005), Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms, Nature, 437(7059), 681-686, doi:10.1038/nature04095.
Feely et al. (2004), Impact of anthropogenic CO2 on the CaCO3 system in the oceans, Science, 305, 362-366, doi:10.1126/science.1097329.
Using estimates of the inventory of anthropogenic dissolved inorganic carbon e.g.:
Sabine et al. (2004), The oceanic sink for anthropogenic CO2, Science, 305, 367-371, doi:10.1126/science.1097403.
Sabine, C. L., and T. Tanhua (2010), Estimation of Anthropogenic CO2 Inventories in the Ocean, Annual Review of Marine Science, 2(1), 175-198, doi:10.1146/annurev-marine-120308-080947.
We used this approach for our paper on calcification in foraminifera:
Moy, A. D., W. R. Howard, S. G. Bray, and T. W. Trull (2009), Reduced calcification in modern Southern Ocean planktonic foraminifera, Nat. Geosci., 2, 276-280, doi:10.1038/ngeo460.
2) Run an ocean model into equilibrium with know preindustrial atmospheric pCO2, e.g.
Cao, L., and K. Caldeira (2008), Atmospheric CO2 stabilization and ocean acidification, Geophys. Res. Lett., 35(19), L19609, doi:10.1029/2008GL035072.
Kleypas, J., R. Buddemeier, D. Archer, J. Gattuso, C. Langdon, and B. Opdyke (1999), Geochemical consequences of increased atmospheric carbon dioxide on coral reefs, Science, 284, 118-120
And check it fits constraints above (inventory of dissolved carbon, alkalinity).
3) Another constraint is to measure pH geochemical proxies in corals and foraminifera, and check that the preindustrial and/or Holocene values fit with the chemistry of an ocean in equilibrium with a ~280 ppm CO2 atmosphere:
Pelejero, C., E. Calvo, M. T. McCulloch, J. F. Marshall, M. K. Gagan, J. M. Lough, and B. N. Opdyke (2005), Preindustrial to modern interdecadal variability in coral reef pH, Science, 309(5744), 2204-2207, doi:10.1126/science.1113692.
Hönisch, B., and N. G. Hemming (2005), Surface ocean pH response to variation in pCO2 through two full glacial cycles, Earth Planet. Sci. Lett., 236, 305-314, doi:10.1016/j.epsl.2005.04.027.
Foster, G. L. (2008), Seawater pH, pCO2 and [CO32-] variations in the Caribbean Sea over the last 130 kyr: A boron isotope and B/Ca study of planktic foraminifera, Earth Planet. Sci. Lett., 271(1-4), 254-266, doi:10.1016/j.epsl.2008.04.015.
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Comment on Open thread by wrhoward
Calcium reactor; yeah not a bad analog for the ocean in many ways. In the context of current ocean acidification the problem is with time scales. In the aquarium you’d get more-or-less a real time response. In the ocean the time scale for sedimentary buffering is likely to be millennia (if not 10s of millennia). That’s for deep-sea carbonates (sediments now just above calcite lysocline).
Wild card is shallow shelf carbonates and how fast and how much they’d kick in. Might be a faster response.
e.g.
Morse, J. W., A. J. Andersson, and F. T. Mackenzie (2006), Initial responses of carbonate-rich shelf sediments to rising atmospheric pCO2 and “ocean acidification:” Role of high Mg-calcites, Geochim. Cosmochim. Acta, 70(23), 5814-5830, doi:10.1016/j.gca.2006.08.017.
Problem is there’s now a question of how much there might be dolomite (relatively resistant to dissolution) vs. high-Mg calcites (relatively vulnerable to dissolution) in these sediments:
Nash, M. C., B. N. Opdyke, U. Troitzsch, B. D. Russell, W. H. Adey, A. Kato, G. Diaz-Pulido, C. Brent, M. Gardner, J. Prichard, and D. I. Kline (2013), Dolomite-rich coralline algae in reefs resist dissolution in acidified conditions, Nature Clim. Change, 3, 268–272, doi:10.1038/nclimate1760.
So there’s an interesting space to watch.
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Comment on Engagement vs communication vs PR vs propaganda by all.masterpickup.ru
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Comment on Open thread by naq
It could have been only yesterday…
“He was Rome’s first and arguably greatest emperor, a fine soldier and wise administrator who boasted that he found Rome built of bricks and left it cloaked in marble.
But as the city prepares to celebrate the 2000th anniversary of Augustus’s death on Tuesday with a series of events and exhibitions, officials have admitted that extensive stables built by the emperor and recently discovered during excavations are to be reburied due to lack of funding.
The reinterring of the stables, which once hosted horses raced at the Circus Maximus, is another blow to anniversary plans after Rome failed to find funds in time to restore Augustus’ mausoleum, a city block-sized monument which has been used as a toilet by tramps since falling into disrepair, and now stands mouldering behind fences in the centre of Rome.”
historians might say.
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Comment on Open thread by Lauri Heimonen
Judith Curry,
On the basis of your recent topics I understand that you question the results of climate model simulations adopted by IPCC scientists. Instead – according to the logic expressed by John Dewey in his book Reconstruction In Philosophy – you follow a logic of pragmatic intelligence. That means you prefer empiric observations to hypothetical climate simulations adopted by IPCC. As far as I am aware, instead of the deeply uncertain climate sensitivity of 6 – 1.5 C expressed in the two latest IPCC reports you assess it to be about 1.5 C. On the basis of additional empiric observations of Scafetta, Lindzen, Arrak, Wojick and Cripwell it can be still lower, even indistinguishable from zero.
The climate sensitivity above concerns any total increase of CO2 content in atmosphere. As I have expressed in my comment http://judithcurry.com/2011/08/04/carbon-cycle-questions/#comment-198992 , increase of CO2 content in atmosphere follows natural warming; trends of increasing CO2 content in atmosphere are taking place as sea surface warms by lag on areas where sea surface sinks are. In addition, recently a share of anthropogenic CO2 emissions in total increase of CO2 content in atmosphere has been only 4 %. This should make anybody understand why during the last 17 years the global temperature has not increased although the CO2 content in atmosphere has even exponentially increased: the global warming caused by increasing CO2 content in atmosphere is so minimal that it can not be distinguished by empiric observations. Because any global warming can not be empirically proved to be caused by total increase of CO2 content in atmosphere, it is still more impossible to claim that the minimal share of anthropogenic CO2 of total CO2 content in atmosphere could have caused the recent global warming like IPCC expresses.
As anthropogenic CO2 emissions cannot be accused of the recent global warming, there is no reason to curtail CO2 emissions. Further research must be focused on actions how to produce energy clean and competive enough, and how to adapt life of mankind to natural events of weather and climate.
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Comment on Open thread by Rob Ellison
There is a much faster calcium cycle in the photic zone involving phytoplankton. Increasing CO2 should result in lower sequestration rates -decreasing the biological carbon pump and increasing the alkalinity pump.
The source is rivers and groundwater – and upwelling in coastal areas – which is mixed in vast oceanic gyres.
http://www.pnas.org/content/105/51/20344.full
It is highly unlikely that this is properly accounted for.
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Comment on Open thread by Rob Ellison
‘Three months ago I asked this question:
Are American civilians so different from Europeans or Aussies or Kiwis or Canadians that they have to be policed as if they’re cornered rebels in an ongoing civil war?
A startling number of American readers wrote to say, with remarkable insouciance, that the US could not afford the luxury of First World policing. Large tracts of America had too many illegal immigrants, drug gangs, racial grievances, etc. Maybe. But the problem is that, increasingly, this is the only style of law enforcement America’s police culture teaches – not only for the teeming favelas, but for the leafy suburbs and the rural backwaters and the college-town keg party, too.
Which is to say that one day, unless something changes, we will all be policed like Ferguson.’
This is the true conclusion to Mark Steyne’s article. Steyn is a remarkably civilized and acute observer – very unlike FOMBS who seems only to think in one dimensional partisan terms.
There is a very insightful doco on why America’s police evolved in this way – How to make money selling dr_gs. It is availbale on Australia’s ABC iview for a few days yet – I can’t link as it seems to cause comments to be eaten entirely by the spam filter.
Here is a link – however – on why free markets, classic liberalism and traditional capitalism are much better at civil peace than the alternatives.
It helps not to have massively liquid shadow markets.
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Comment on Open thread by Rob Ellison
The doco makes the observation that America’s police are armed and equipped for the trillion dollars war on d…. Most of their funding comes for equipping paramilitary units designed for urban warfare and that spills over into everyday policing.
It is an arms race fueled by the immense amounts of money to be made from d….. answered by the sort of policing that should never be seen on civilized streets. Neither side of politics has been particularly adept at stepping down the rhetoric. The Rockefeller d… laws stepped it up several notches and across the country resulted in incarceration rates not seen anywhere else in the world – with a lamentable impact on black America.
It seems more than time to say no to the war on d…. I followed up with viewing another doco on d… growing in California. There is a civil war in the hills of Humboldt County fueled by confusion in the law on growing d…. and the impossibility of stopping transport across the country. Heavily armed police are heavily outnumbered by cartels and gangs. Even the police officers are despairingly talking either outright bans or complete legalization. Not the unworkable no man’s land.
The way back is through legalization to remove the money link and treatment of the issue as a social health problem. Refocus American policing – put people in rehab just like rich white Americans instead of jail. A classic liberal path to policing sanity.
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Comment on Mann vs Steyn et al. discussion thread by Michael
thisisnotgoodtogo | August 17, 2014 at 9:10 pm |
“It did not exonerate him. Neither did the other ones.
Only his university inquiry exonerated him”
So he was exonerated.
OK.
All the claims of “fr@ud” etc come from foaming at the mouth imbeciles on the intertubes and gutter ‘journalists’ specialising in spleen venting for the entertainment of a particular audience demographic.
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Comment on Open thread by aaron
The above baseline co2 in the atmoshere is largly fossil in origin (vast majority likely being anthropogenic), but other process may drive the concentration. Temperature determining atmospheric concentration at the ocean surface and precipitation determining the rate of removal throughout the troposphere.
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Comment on Open thread by aaron
And if we increase the co2 above equalibrium and the temperature happens to rise, the ocean will simply take in less co2 rather than outgas. The co2 in the atmosphere will remain fossil even though temperature is responsible for part of increased concentration by raising the equalibrium concentration.
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Comment on Mann vs Steyn et al. discussion thread by AK
@Nick Stokes…<blockquote>That’s why I asked you to quote the alleged lie. These claims just keep shifting. Your original claim was:
<blockquote>“specifically alleges this investigation ‘exonerated’ him when Mann was outside its remit”</blockquote>
Now it comes down to just some lawyer inexactly transcribing a quotation.</blockquote>You need to control your paranoia. That was Rud's <i>"original claim"</i>. I provided the supporting quote, which does (IMO) justify the statement, although it's not how I would have phrased it. Now, when <I>"some lawyer inexactly transcribing a quotation"</I> occurs as part of an effort to mislead the court, that IMO constitutes a lie: a deliberate mistruth told with intent to deceive. How many of the <i>"investigations"</i> listed in the brief actually considered <i>"fraud"</i> on Mann's part, either scientific or any other type? How many just involved other people, and were added to the brief in support of <i>"Dr. Mann’s research has been reviewed repeatedly and replicated by other scientists, and that Dr. Mann has been repeatedly exonerated: no fraud; no misconduct; no molestation; no corruption"</i>?
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Comment on Mann vs Steyn et al. discussion thread by philjourdan
@Don
Did manny defame Judith, when he called her anti-science and serial dis-informer?
Here is the irony. By basically ignoring Mann’s infantile tirades, Dr. Curry is saying she cares nothing for Mann’s opinion. For a scientist, that is perhaps the greatest insult!
But Mann, having decided to sue Steyn, is saying he greatly values Steyn’s opinion.
Frankly, I enjoy Dr. Curry’s slap at Mann. It also shows a great deal of maturity on her part, and childish petulance on Mann’s.
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Comment on Mann vs Steyn et al. discussion thread by AK
@Michael...<blockquote><blockquote>thisisnotgoodtogo | August 17, 2014 at 9:10 pm |
“It did not exonerate him. Neither did the other ones.
Only his university inquiry exonerated him”</blockquote>So he was exonerated.</blockquote>He was <i>"exonerated"</i> by the same university administration that <a href="http://www.huffingtonpost.com/2011/11/06/jerry-sandusky-penn-state-child-sex-scandal-curley-schultz-cover-up_n_1078493.html" rel="nofollow"><i>"exonerated"</i> Sandusky.</a><blockquote>Schultz told the jurors he also knew of a 1998 investigation involving sexually inappropriate behavior by Sandusky with a boy in the showers the football team used.</blockquote>This is what the whole flap is about, comparing those two <i>"exonerations"</i>.
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Comment on Mann vs Steyn et al. discussion thread by philjourdan
Journalists held to standards? Since when?
Rathergate.
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Comment on Open thread by Daniel
DA Common core: Thank god for small favors and thank the Kock brother for having the courage to oppose such a vicious, obnoxious, authoritarian stupidity as Common Core.
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