Are humans contributing only 3% of CO2 in the atmosphere?

submitted by Climate Change:How Skewed Are We...Reall on 12/08/16 1

SOURCES 1:00 louderwithcrowder.com/top-5-climate-change-myths-debunked/ 1:18 notrickszone.com/2013/03/02/most-of-the-rise-in-co2-likely-comes-from-natural-sources/#sthash.IExmn9dN.dpbs 1:30 -- CO2 graph from www.epa.gov/climate-change-science/causes-climate-change 1:46 Production of CO2 graph from CDIAC (cdiac.ornl.gov/trends/emis/glo_2013.html) 1:58 No tricks zone, Ibid. 2:35 This graph of solar output comes from tamino.wordpress.com/2016/04/22/sunspots-and-solar-output/, which is not a peer-reviewed source. But I’ve checked it against official data and it is accurate. See a similar graph at the Australian Bureau of Meteorology: www.sws.bom.gov.au/Images/Educational/The%20Sun%20and%20Solar%20Activity/General%20Info/solar-output.png 2:44 Oceans absorbing CO2: 1) “Global carbon budget 2013” Le Quéré et al., Earth System Science Data 2014, 2) “Ocean uptake of fossil fuel CO2” Quay et al., Science 1992 3) Ameriflux project, US Department of Energy 3:15 www.geocraft.com/WVFossils/greenhouse_data.html (Mar 2 2007) 4:20 -- 68.52 ppm is 18.6% of 368,400, the total content of CO2 in the atmosphere at the time Heib wrote his blog. 18% of 3 trillion tons (total atmospheric CO2) is 558 billion tons. So if an extra 558 billion tons of CO2 has accumulated in the atmosphere from natural sources, that’s equivalent to over 50,000 Mt. St. Helen-sized eruptions (Mt St Helens emitted around 10 million tons of CO2 according to the US Geological Survey -- volcanoes.usgs.gov/vhp/gas_climate.html). An according to the CDIAC, half of the extra CO2 has been added since the mid 1980s (cdiac.ornl.gov/CO2_Emission/timeseries/global), so that means 25,000 Mt. St. Helen-sized eruptions. 4:57 – Papers covering isotopic evidence are shown in the video. 5:41 -- www.carboncyclescience.us/us-department-energy 5:45 -- scied.ucar.edu/imagecontent/carbon-cycle-diagram-doe-numbers 6:01 -- www.co2web.info/ 6:36 -- The carbon cycle, or carbon flux, is explained in most high school textbooks. If you are unfamiliar with it, take a look at this explanatory article from the University of New Hampshire: globecarboncycle.unh.edu/CarbonCycleBackground.pdf. Also the Ameriflux project from the Department of Energy, or the CDIAC website at cdiac.ornl.gov/carbon_cycle_data.html 9:15 – Compilation of blogs touting the 3.75% myth: www.climatedepot.com/2014/07/19/new-paper-finds-only-3-75-of-atmospheric-co2-is-man-made-from-burning-of-fossil-fuels-published-in-atmospheric-chemistry-and-physics/ lunaticoutpost.com/archive/index.php?thread-447404.html 9:29 -- Paper as shown in the video 9:56 - www.climatedepot.com/2014/07/19/new-paper-finds-only-3-75-of-atmospheric-co2-is-man-made-from-burning-of-fossil-fuels-published-in-atmospheric-chemistry-and-physics/ 10:01 -- hockeyschtick.blogspot.com.au/2014/07/new-paper-finds-only-375-of-atmospheric.html 10:56 -- This is just an executive summary from the IPCC’s “Working Group I -- The scientific basis” at www.ipcc.ch/ipccreports/tar/wg1/index.php?idp=96. For more detailed study, see the IPCC’s references and cdiac.ornl.gov/trends/emis/tre_glob_2010.html 11:58 -- ANNOTATION. Lead author Denica Bozhinova posted this: "thank you for featuring my article and struggle to overcome the misinterpretation by the HockeySchtick. However, you are a bit off why the misinterpretation happened so for the sake of clarity I will explain in short what those 15 ppm mentioned in the abstract are and why they are not "3% of the CO2 in the atmosphere" :)" 1. We are looking at the accumulated CO2 concentrations (in ppm), but accumulated only over the period of our study, which is 6 months-long simulation from April 2008 to October 2008. 2. We are looking at the CO2 concentrations accumulated in a regional study, so only over the Western Europe, and thus these are not global averages, we are not simulating for example the emissions in China or USA and so on. (we do include these in a different term in our article, as they will be emissions outside our area of interest) 3. The 15 ppm mentioned in the abstract are average gradients - that means at the end of our 6 month simulation we make an average of the CO2 for every point in our area and 15 ppm is the difference between the places with lowest and highest CO2 concentration from fossil fuels. 14:03 -- wryheat.wordpress.com/2014/07/19/only-about-3-of-co2-in-atmosphere-due-to-burning-fossil-fuels/ 16:32 -- wattsupwiththat.com/2014/07/29/epa-document-supports-3-of-atmospheric-carbon-dioxide-is-attributable-to-human-sources/

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