tag:blogger.com,1999:blog-507659435767768133.post239290439811223617..comments2023-09-25T01:17:03.971+13:00Comments on lefthandpalm: Lurgee's Paradigm: "The planet isn't warming!"lurgeehttp://www.blogger.com/profile/08735536088030480119noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-507659435767768133.post-20857983872493934222008-04-12T00:14:00.000+12:002008-04-12T00:14:00.000+12:00That's just trying to muddy the waters.I'm sure yo...That's just trying to muddy the waters.<BR/><BR/>I'm sure you are familiar with the 'Hockey Stick' graph which charts the temeprature over the last 1,000 years. It shows that yes, something is out of place. <BR/><BR/>(Unless you've got some proper scientific critique of it, rather than murmurings about source code, spare me the counter-claims about its validity.)<BR/><BR/>ANyway, stretching the temperature record back 1,000, or 2,000, or 20,000 years isn't really going to tell us anything very useful. We know that temperature has fluctauted historically. These fluctuations were not caused by anthropogenic activity because - as deniers are fond of pointing out - Romans didn't drive 4x4s. Previous variation can be attributed to other causes. <BR/><BR/>The logic of this cuts both ways, however. Historical variation was caused by non-anthropogenic causes. Generally, we know why temperature has varied, historically, and we can see the pattern. Current warming doesn't fit in with historical trends, so previous fluctuations don't have much bearing on what is happening in the 21st century. Unlike the ROmans, we do emit a lot of CO2, which is a green house gas.<BR/><BR/>We know what emitting CO2 into the atmosphere will do. IT will cause warming. We can estimate - roughly - what the historical CO2 emmissions are from the Industrial Revolution onwards. We know what effect that should have on the temperature. We see something similar happening, which can't be attributed to other causes, as there isn't a mechanism by which they can account for it.lurgeehttps://www.blogger.com/profile/08735536088030480119noreply@blogger.comtag:blogger.com,1999:blog-507659435767768133.post-89328179039614058592008-04-08T09:34:00.000+12:002008-04-08T09:34:00.000+12:00What about before the 1800's?If you want to talk a...What about before the 1800's?<BR/><BR/>If you want to talk about long term trends lets make that graph at least 2000 years, so we can track this from the Roman Warming to the present and see if anything is out of place.Anonymousnoreply@blogger.com