tag:blogger.com,1999:blog-16612221.post5263041164809556812..comments2024-03-19T03:14:04.172-04:00Comments on Rabett Run: There goes another one . . .EliRabetthttp://www.blogger.com/profile/07957002964638398767noreply@blogger.comBlogger11125tag:blogger.com,1999:blog-16612221.post-10376922569613067622008-02-10T00:50:00.000-05:002008-02-10T00:50:00.000-05:00The short time for ocean circulation fits rather f...The short time for ocean circulation fits rather frighteningly well with Ward's scenarios for rapid change to a toxic atmosphere -- trouble by mid-this-century -- based upon the paleo work on warming of the deep ocean, in previous great extinctions.<BR/><BR/>Think layers of black anoxic shale in the strata, above layers of limestone full of fossils, but overlain by layers with very few fossils -- those mark the great extinctions of multicellular life, and a great era of success for the bacteria that thrive on sulfur.<BR/><BR/>http://www.newscientist.com/channel/life/mg19726421.900-mass-extinctions-the-microbes-strike-back.html<BR/><BR/>http://64.233.179.104/scholar?q=cache:7LCFXfPAFT0J:www.geotimes.org/current/feature_Geocatastrophes.html+%22peter+ward%22+extinction+microbes+sulfur&num=100&hl=en&lr=&newwindow=1&strip=1Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-43010246265666621252007-09-23T19:12:00.000-04:002007-09-23T19:12:00.000-04:00To the people who have used the lag to argue again...To the people who have used the lag to argue against CO2-induced global warming, it makes no difference whether the lag is 800 years or 800 micro seconds -- as long as there is a lag.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-45436470939065920012007-09-22T13:09:00.000-04:002007-09-22T13:09:00.000-04:00A bit of an excerpt, just to make the point that p...A bit of an excerpt, just to make the point that people need to read the actual article (and I left out a big chunk of detail below).<BR/><BR/>_____________excerpt_______<BR/>"The large reduction in 14C age in Figure 4 compared to Figure 1 suggests that the deep ocean circulation is more accurately described as centennial [Broecker et al., 1991; Stuiver et al., 1983] rather than millennial. This does not entirely negate the notion of a millennial timescale because circulation ages of 1000 years are found in the North Pacific (Figure 4). However, basin-wide, average erroneous first impressions that one gets from conventional<BR/>ages (i.e., 1000 years in the Atlantic and 1000 years in the<BR/>Pacific).[25] The new circulation 14C ages summarized in Table 1<BR/>are broadly consistent with the centennial replacement times<BR/>of Stuiver et al. [1983]....<BR/><BR/>"The new map of 14C ages (Figure 4) accounts for important pitfalls when interpreting the conventional 14C ages (Figure 1) in terms of circulation. Those pitfalls are not always obvious to those outside the field of chemical oceanography. Now there is a map that actually shows what the special IPCC [2005] report on carbon sequestration says about the age of the North Pacific deep water. ..."<BR/>--------end excerpt--------<BR/><BR/>This did make look for a vaguely recalled Calvin & Hobbes cartoon: Dad checks under the bed and says, "Yep, the monster's there again, hmmm, and tonight it's drooling. Well, good night, sleep well."Hank Robertshttps://www.blogger.com/profile/07521410755553979665noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-91954229841185760732007-09-22T12:15:00.000-04:002007-09-22T12:15:00.000-04:00Anonymous 7:08 AM: Duly noted; however, my point s...Anonymous 7:08 AM: Duly noted; however, my point still stands. ADD.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-51296095429394742672007-09-22T11:49:00.000-04:002007-09-22T11:49:00.000-04:00Actually Evil Hank, ADD/typosActually Evil Hank, ADD/typosEliRabetthttps://www.blogger.com/profile/07957002964638398767noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-46657039265060255022007-09-22T11:17:00.000-04:002007-09-22T11:17:00.000-04:00Auditing for OCR/typos,"1ag" and "1age" -> "lag"?(...Auditing for OCR/typos,<BR/><BR/>"1ag" and "1age" -> "lag"?<BR/>(the first 2 have numeral "one" for lower case "L")<BR/><BR/>loathe -> loath<BR/><BR/>-------<BR/>Fascinating post on ocean circulation; I've seen two or three papers reporting increasing abyssal temperatures, and knew these were many centuries sooner than expected, but hadn't seen any comment on them; most helpful.<BR/><BR/>(Terrifying, but helpful ...)Hank Robertshttps://www.blogger.com/profile/07521410755553979665noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-9139542354941731482007-09-22T10:08:00.000-04:002007-09-22T10:08:00.000-04:00Deech56 and details.deech writes [Mcintyre]Had eno...Deech56 and details.<BR/><BR/>deech writes [Mcintyre]Had enough time to write a post on Tamino's RC post about the paper, though.<BR/><BR/>small detail, check who wrote the post. UC wrote it.<BR/><BR/>Details.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-89339678575506083362007-09-22T07:26:00.000-04:002007-09-22T07:26:00.000-04:00Well, we know that the CA crowd was too busy with ...Well, we know that the CA crowd was too busy with minutia. While perusing that site, it struck me that their problem is that they examine small detail in a vacuum. In one of my few posts there I asked whether they planned to examine the Schwartz paper; when John V asked the same question, Steve McI wrote, "I’ve only got a certain amount of time, I can’t do everything in the word. I also try to do things that other people aren’t doing and it looks like other people are writing on Schwartz. I’d like to get to it some time." Had enough time to write a post on Tamino's RC post about the paper, though.<BR/><BR/>Anyway, by focusing only on the details, they (unlike you) fail to consider the context. They appear to believe that the big issue is inaccuracy in the data; it's not - the big issue is that by any relevant indication anyone chooses to examine, the earth is getting warmer and things will change. Are all the data perfect? No, but then there aren't that many perfect data sets in science, but science seems to progress.<BR/><BR/>Anyway, thanks for allowing my rant and keep educating us on the science and the meaning of the research.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-2526523766397577752007-09-22T05:11:00.000-04:002007-09-22T05:11:00.000-04:00Hey, *I* saw it too, unwashed though I am. IIRC t...Hey, *I* saw it too, unwashed though I am. <BR/><BR/>IIRC the 800 years had been thought to mesh nicely with the turnover of the oceans, but there's a fresh <A HREF="http://www.agu.org/pubs/crossref/2007/2007JC004095.shtml" REL="nofollow">paper</A> in JGR that claims more like century-scale turnover. If correct that would mesh well with the EPICA result, but unless I'm missing something it would have some rather more important implications for present calculations of ocean heat content, the time needed to reach global warming equilibrium and the time needed for CO2 saturation. I've seen three or four other papers in the last year that found deep ocean warming in progress in specific locales, so maybe this new finding is for real. <BR/><BR/>JohnS, you appear to care not at all whether your comments have any basis in fact. Try spending some time reading papers.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-30588556425520607082007-09-22T04:37:00.000-04:002007-09-22T04:37:00.000-04:00But Rabett, your guess would have been that the 2...But Rabett, your guess would have been that the 2006 Arctic ice minima would have later than 2005 and covered less area than 2005. You would have been wrong. Your guesses are worthless, great for your fellow faith warmers to comment, but still worthless.<BR/><BR/>JohnSAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-29884244221627123882007-09-22T03:48:00.000-04:002007-09-22T03:48:00.000-04:00Not everyone, Uncle Eli: William & U discussed thi...Not everyone, Uncle Eli: William & U discussed this when it first appeared in CPD some months ago...<BR/><BR/>:)PAnonymousnoreply@blogger.com