peach_cube Posted March 12, 2008 Share Posted March 12, 2008 [quote name='dairygirl4u2c' post='1476271' date='Mar 12 2008, 02:05 PM']doesn't this make the most sense, considering how little and how infrequent volcanoes erupt?[/quote] Here's the thing, a singular active volcano will release thousands of tonnes of various gasses into the atmosphere each day. Volcanoes that are monitored are done so with with this in mind through COSPEC readings. One just needs to know the wind direction and drive under this invisible plume to see if there is an increase in volcanic activity that may signal a coming eruption. (See Mt. Pinatubo). A major volcanic eruption can disrupt weather patterns for years (the Storm of the Century in 1993 is partly thought to be a result of the Pinatubo eruption) with the aerosols blocking out sun for years. Major eruptions are infrequent, out gassing is quite regular. [quote name='dairygirl4u2c' post='1476271' date='Mar 12 2008, 02:05 PM']so, if our ice caps are melting, and there's a correlation (while acknoledging that correlation doens't imply causation) between Co2 and temp, and the ice caps have gotten dirty since the industrial revolution... and everything else, MMGW substantial, makes sense.[/quote] I think you will find that due to increase in the amount of precipitation in the continent of Antarctica there has been an overall increase in the Antarctic ice cap, with the West antarctic the only one diminishing. The increased precipitation may be due to increased global temperatures, weakening circumpolar winds (which is actually good for the ozone layer), or other. It does result in more calving but that is due to increased push. The ice caps have not gotten dirty (bad Al Gore, bad). Having discussions with Dr. Richard Alley and an associate that has seen these samples they have assured me that the industrial revolution can only be noted under thin section. [quote name='dairygirl4u2c' post='1476271' date='Mar 12 2008, 02:05 PM']to say say our effect is surely causing bad effects is not wise. to say global warming is a hoax is idiotic.[/quote] While the annual mean minimum temperature has been rising the annual mean maximum temperature has showed little change. It's complex science. Take the solar constant, plus sunspot cycles, plus Milankovitch cycles, plus greenhouse gases, plus volcanic activity, plus aerosol fluctuations, plus snow cover, plus etc. The best bet is to ignore the extreme views on the subject, hope for more clarity in the data that is collected, and be prudent in the decisions that you as a consumer make. In my opinion there are far more pressing environmental concerns that are being pushed aside for this topic. Hopefully it will lead to debates on the sustainability of marine resources, the exploitation of the third world by multinational corporations, and others. Just remember buying a hybrid car won't do diddly poo, 75% of U.S. energy consumption goes into heating and cooling our buildings. You are better off investing in some real high quality insulation, new windows, and a more efficient heater and air conditioner. Link to comment Share on other sites More sharing options...
dairygirl4u2c Posted March 13, 2008 Share Posted March 13, 2008 well, even if volcanoes are more significant that i said.... that graph in the initial link by the EPA shows that our contribution to the CO2 in the atmosphere is irrefutably significant, and it's irrefutably not from volcanoes. as to whether that's causing GW or what is exactly, is still debateble. but with that graph, at least as far as CO2 goes, the question is over. Link to comment Share on other sites More sharing options...
dairygirl4u2c Posted March 13, 2008 Share Posted March 13, 2008 (edited) [url="http://en.wikipedia.org/wiki/Image:Vostok-ice-core-petit.png"]http://en.wikipedia.org/wiki/Image:Vostok-ice-core-petit.png[/url] there is another graph showing the CO2 and temp correlation. now, the last ice age was 11000 years ago, or the low point on the temp graph. i'd imagine each was a ice age, each low point. so... our CO2 is indeed rising naturally very much, but it's irrefutable that the recent CO2 has been significantly raised by us, as indicatd by that EPA graph. so the question comes down to the correlation and caustion qustion. and it also comes down to things such as how much the ice etc would be melting and temp increasing even without our added CO2. how much did it melt last peek? is an important question. you can't deny that the EPA graph makes it look suspicioius. and that we're adding CO2 at an inopportune time. but... if sun spots and sun activity was a signficant cause of the ice ages.... and we see CO2 correlation... which was really the cause, and how does sun activity tie with CO2 activity naturally? this is a very important question. even if hte sun causes the CO2, if the Co2 causes the wrming, wouldn't our irrufutable significant increase cause more wrming? yes. but, the Co2 might just be a consequence of the sun or ice melting, and not a cause. this makes intuitive sense, cause if the ice melts, life would exhause Co2 etc, maybe. or if life is too insignificant to be the CO2 culprit, what could it be from? Edited March 13, 2008 by dairygirl4u2c Link to comment Share on other sites More sharing options...
peach_cube Posted March 13, 2008 Share Posted March 13, 2008 [quote name='dairygirl4u2c' post='1476806' date='Mar 13 2008, 11:59 AM']well, even if volcanoes are more significant that i said.... that graph in the initial link by the EPA shows that our contribution to the CO2 in the atmosphere is irrefutably significant, and it's irrefutably not from volcanoes. as to whether that's causing GW or what is exactly, is still debateble. but with that graph, at least as far as CO2 goes, the question is over.[/quote] Total human CO2 emissions primarily from use of coal, oil, and natural gas and the production of cement are currently about 5.5 GT C per year (Giga tons of carbon per year). A recent update says 8.5 GT. To put these figures in perspective, it is estimated that the atmosphere contains 750 GT C; the surface ocean contains 1,000 GT C; vegetation, soils, and detritus contain 2,200 GT C; and the intermediate and deep oceans contain 38,000 GT C. Each year, the surface ocean and atmosphere exchange an estimated 90 GT C; vegetation and the atmosphere, 60 GT C; marine biota and the surface ocean, 50 GT C; and the surface ocean and the intermediate and deep oceans, 100 GT C. The amount of of Carbon Dioxide that human activity is responsible is less around 1% of the total in the atmosphere. Of course our degree of error in estimating the amount of CO2 in the atmosphere at any given moment is around 5 to 6 percent. Source [url="http://www.oism.org/pproject/s33p36.htm"]http://www.oism.org/pproject/s33p36.htm[/url] Also interesting to make note of in light of the irrefutably significant graph: [url="http://www.canadafreepress.com/2007/global-warming051407.htm"]http://www.canadafreepress.com/2007/global-warming051407.htm[/url] Link to comment Share on other sites More sharing options...
peach_cube Posted March 13, 2008 Share Posted March 13, 2008 [img]http://www.scotese.com/images/globaltemp.jpg[/img] I find this graph fairly interesting as well. Link to comment Share on other sites More sharing options...
dairygirl4u2c Posted March 14, 2008 Share Posted March 14, 2008 what's needed is sun activity data back thousands of thousands of years ago to compare to temperature. also, any other possible causes need put out there, and likewise compared. as of now, carbon and temp correlate. [quote]Scafetta, 2006 "We estimate that the sun contributed as much as 45–50% of the 1900–2000 global warming, and 25–35% of the 1980–2000 global warming. These results, while confirming that anthropogenic-added climate forcing might have progressively played a dominant role in climate change during the last century. [url="http://www.fel.duke.edu/~scafetta/pdf/20.."]http://www.fel.duke.edu/~scafetta/pdf/20..[/url]. Foukal, 2006 "The variations measured from spacecraft since 1978 are too small to have contributed appreciably to accelerated global warming over the past 30 years." [url="http://www.nature.com/nature/journal/v44.."]http://www.nature.com/nature/journal/v44..[/url]. [url="http://www.mpa-garching.mpg.de/mpa/publi.."]http://www.mpa-garching.mpg.de/mpa/publi..[/url]. Foukal, 2006 "Our results imply that, over the past century, climate change due to human influences must far outweigh the effects of changes in the Sun's brightness. … Variations of this magnitude are too small to have contributed appreciably to the accelerated global warming observed since the mid-1970s, according to the study, and there is no sign of a net increase in brightness over the period." [url="http://www.ucar.edu/news/releases/2006/b.."]http://www.ucar.edu/news/releases/2006/b..[/url]. Lockwood, 2007 "The analysis shows that global warming since 1985 has been caused neither by an increase in solar radiation nor by a decrease in the flux of galactic cosmic rays." [url="http://www.petedecarlo.com/files/448008a.."]http://www.petedecarlo.com/files/448008a..[/url]. [url="http://www.pubs.royalsoc.ac.uk/media/pro.."]http://www.pubs.royalsoc.ac.uk/media/pro..[/url]. Lockwood, 2007 “There is considerable evidence for solar influence on the Earth’s pre-industrial climate and the Sun may well have been a factor in post-industrial climate change in the first half of the last century. Here we show that over the past 20 years, all the trends in the Sun that could have had an influence on the Earth’s climate have been in the opposite direction to that required to explain the observed rise in global mean temperatures.” [url="http://publishing.royalsociety.org/media.."]http://publishing.royalsociety.org/media..[/url]. Solanki, 2004 "Researchers at the MPS have shown that the Sun can be responsible for, at most, only a small part of the warming over the last 20-30 years. They took the measured and calculated variations in the solar brightness over the last 150 years and compared them to the temperature of the Earth. Although the changes in the two values tend to follow each other for roughly the first 120 years, the Earth’s temperature has risen dramatically in the last 30 years while the solar brightness has not appreciably increased in this time." [url="http://www.mpg.de/english/illustrationsD.."]http://www.mpg.de/english/illustrationsD..[/url]. Ammann, 2007 “Although solar and volcanic effects appear to dominate most of the slow climate variations within the past thousand years, greenhouse gas effects have dominated the last century.” [url="http://www.aimes.ucar.edu/MEETINGS/2005_.."]http://www.aimes.ucar.edu/MEETINGS/2005_..[/url]. et. cetera[/quote] Link to comment Share on other sites More sharing options...
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