tag:blogger.com,1999:blog-4142988674703954802.post8824612574290990778..comments2024-03-11T04:54:26.827-07:00Comments on THE HOCKEY SCHTICK: New paper finds ice ages explained even with constant levels of CO2Unknownnoreply@blogger.comBlogger14125tag:blogger.com,1999:blog-4142988674703954802.post-86344530437359613672013-11-25T09:20:39.093-08:002013-11-25T09:20:39.093-08:00http://ars.els-cdn.com/content/image/1-s2.0-S00310...http://ars.els-cdn.com/content/image/1-s2.0-S0031018213005063-gr9.jpg<br /><br />http://www.sciencedirect.com/science/article/pii/S0031018213005063MShttps://www.blogger.com/profile/06714540297202434542noreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-60980470044766538202013-08-21T09:11:44.806-07:002013-08-21T09:11:44.806-07:00more on the 100,000 yr problem
http://www.clim-pa...more on the 100,000 yr problem<br /><br />http://www.clim-past.net/9/2003/2013/cp-9-2003-2013.pdfMShttps://www.blogger.com/profile/06714540297202434542noreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-38130129519482667922013-08-19T09:26:29.580-07:002013-08-19T09:26:29.580-07:00http://www.nature.com/nature/journal/vaop/ncurrent...http://www.nature.com/nature/journal/vaop/ncurrent/full/nature12376.htmlMShttps://www.blogger.com/profile/06714540297202434542noreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-5072364607559536722013-08-15T14:27:43.343-07:002013-08-15T14:27:43.343-07:00http://wattsupwiththat.com/2013/08/14/claim-co2-en...http://wattsupwiththat.com/2013/08/14/claim-co2-ended-the-last-ice-age/<br /><br />http://wattsupwiththat.com/2013/08/14/claim-co2-ended-the-last-ice-age/#comment-1390496<br /><br />http://wattsupwiththat.com/2013/08/14/claim-co2-ended-the-last-ice-age/#comment-1390760MShttps://www.blogger.com/profile/06714540297202434542noreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-84539086291744923692013-08-15T11:00:53.068-07:002013-08-15T11:00:53.068-07:00http://www.sciencedaily.com/releases/2013/08/13081...http://www.sciencedaily.com/releases/2013/08/130814132228.htmMShttps://www.blogger.com/profile/06714540297202434542noreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-73057770069387881042013-08-11T01:27:17.470-07:002013-08-11T01:27:17.470-07:00"We note, however, that CO2 variations can r..."We note, however, that CO2 variations can result in amplification of the full magnitude of ice-volume changes during the 100-kyr cycles, but do not drive the cycles."Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-78422302189854813562013-08-09T07:39:53.683-07:002013-08-09T07:39:53.683-07:00summary of this paper published today
http://www....summary of this paper published today<br /><br />http://www.terradaily.com/reports/Ice_ages_only_thanks_to_feedback_999.html<br /><br />with no mention of CO2/greenhouse gases as a feedbackMShttps://www.blogger.com/profile/06714540297202434542noreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-17092024402739696492013-08-08T12:00:56.361-07:002013-08-08T12:00:56.361-07:00I disagree in this respect:
1. Fig 1g black line ...I disagree in this respect:<br /><br />1. Fig 1g black line shows CO2 220 ppm but allowed to vary with out-gassing & in-gassing. Fig 1e has an almost identical amplitude of the glacial cycles with CO2 held constant. Therefore, the prior 'consensus' that positive-feedbacks from CO2 levels following temperature are necessary to explain the amplitude of glacial cycles is disproven.<br /><br />2. The modeling assumptions of CO2 radiative forcing made in this paper also suffer from the same assumptions that have caused all 73 IPCC AR5 climate models to exaggerate warming - namely over-sensitivity to CO2. MShttps://www.blogger.com/profile/06714540297202434542noreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-80931592764043001832013-08-08T05:55:53.417-07:002013-08-08T05:55:53.417-07:00"New paper finds ice ages explained even with..."New paper finds ice ages explained even with constant levels of CO2"<br /><br />I would like to refer you to figure 1 g of the article;<br />there you will see that different CO2 concentrations lead to differen levels of glaciation, measured in sea level equivalents;<br />so you can explain the 100 k periodicity and the saw-tooth without CO2, not the amplitude of the ice age; martinhttp://www.zeeburgnieuws.nlnoreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-70938807197432255742013-08-08T00:01:32.842-07:002013-08-08T00:01:32.842-07:00The 100,000yr 'problem' goes way once you ...The 100,000yr 'problem' goes way once you correctly integrate longterm effect of insolation difference on oceans. Under-estimating depth and timescale of ocean response to changing solar forcing is part of the AGW rationale.<br /><br />Rog TallblokeAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-51043506151321863352013-08-07T18:27:29.043-07:002013-08-07T18:27:29.043-07:00Thanks tallbloke, that is a classicThanks tallbloke, that is a classicMShttps://www.blogger.com/profile/06714540297202434542noreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-87753705523925625582013-08-07T18:16:29.257-07:002013-08-07T18:16:29.257-07:00You are correct that eccentricity [orbit] does aff...You are correct that eccentricity [orbit] does affect both the NH & SH similarly [although not exactly the same since there is more NH land mass than SH land mass], but eccentricity has the least influence of the 3 cycles. This has led to the so-called 100,000 year problem:<br /><br />http://en.wikipedia.org/wiki/100,000-year_problemMShttps://www.blogger.com/profile/06714540297202434542noreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-40379626515140916592013-08-07T17:43:25.524-07:002013-08-07T17:43:25.524-07:00Noted above"Still unexplained, however, is th...Noted above"Still unexplained, however, is that ice ages were approximately synchronous between the Northern and Southern hemispheres, even though by Milankovitch theory an increase in solar radiation in the Northern Hemisphere is offset by an equal decrease of solar radiation in the Southern Hemisphere." Is this true of all three Milankovitch cycles? I can see how it would be true of the tilt and wobble cycles. But I suspect the orbital distance cycle, circular to ellipse transitioning, would affect both north and south similarly.Robinhttps://www.blogger.com/profile/09265675226202126146noreply@blogger.comtag:blogger.com,1999:blog-4142988674703954802.post-58570926286370786222013-08-07T14:40:43.742-07:002013-08-07T14:40:43.742-07:00In Defence of Milankovitch
Gerard Roe 2006
Covers ...In Defence of Milankovitch<br />Gerard Roe 2006<br />Covers a lot of this groundAnonymousnoreply@blogger.com