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<article language="en">
	<journal>
		<journal_title>Atmospheric Chemistry and Physics Discussions</journal_title>
		<journal_url>www.atmos-chem-phys-discuss.net</journal_url>
		<issn>1680-7367</issn>
		<eissn>1680-7375</eissn>
		<volume_number>10</volume_number>
		<issue_number>6</issue_number>
		<publication_year>2010</publication_year>
	</journal>
	<doi>10.5194/acpd-10-16111-2010</doi>
	<article_url>http://www.atmos-chem-phys-discuss.net/10/16111/2010/</article_url>
	<abstract_html>http://www.atmos-chem-phys-discuss.net/10/16111/2010/acpd-10-16111-2010.html</abstract_html>
	<fulltext_pdf>http://www.atmos-chem-phys-discuss.net/10/16111/2010/acpd-10-16111-2010.pdf</fulltext_pdf>
	<start_page>16111</start_page>
	<end_page>16151</end_page>
	<publication_date>2010-06-30</publication_date>
	<article_title content_type="html">Anthropogenic sulfur dioxide emissions: 1850–2005</article_title>
	<authors>
		<author numeration="1" affiliations="1">
			<name>S. J. Smith</name>
			<email>ssmith@pnl.gov</email>
		</author>
		<author numeration="2" affiliations="2,4">
			<name>J. van Aardenne</name>
		</author>
		<author numeration="3" affiliations="2">
			<name>Z. Klimont</name>
		</author>
		<author numeration="4" affiliations="3">
			<name>R. Andres</name>
		</author>
		<author numeration="5" affiliations="1">
			<name>A. Volke</name>
		</author>
		<author numeration="6" affiliations="1">
			<name>S. Delgado Arias</name>
		</author>
	</authors>
	<affiliations>
		<affiliation numeration="1" content_type="html">Joint Global Change Research Institute, Pacific Northwest National Laboratory,  5825 University Research Court, Suite 3500, College Park, MD 20740, USA</affiliation>
		<affiliation numeration="2" content_type="html">European Commission Joint Research Centre, European Commission, Via E. Fermi 2749, TP 290,I – 21027 Ispra (VA), Italy</affiliation>
		<affiliation numeration="3" content_type="html">Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831,  USA</affiliation>
		<affiliation numeration="4" content_type="html">current address: European Environment Agency, Kongens Nytorv 6, 1050 Copenhagen, Denmark</affiliation>
	</affiliations>
	<abstract content_type="html">Sulfur aerosols impact human health, ecosystems, agriculture, and
      global and regional climate. A new annual estimate of anthropogenic
      global and regional sulfur dioxide emissions has been constructed
      spanning the period 1850–2005 using a bottom-up mass balance method,
      calibrated to country-level inventory data. Global emissions peaked in
      the early 1970s and decreased until 2000, with an increase in recent
      years due to increased emissions in China, international shipping, and
      developing countries in general. An uncertainty analysis was conducted
      including both random and systemic uncertainties. The overall global
      uncertainty in sulfur dioxide emissions is relatively small, but
      regional uncertainties ranged up to 30%. The largest contributors
      to uncertainty at present are emissions from China and international
      shipping. Emissions were distributed on a 0.5&amp;deg; grid by
      sector for use in coordinated climate model experiments.</abstract>
	<references>
		<reference numeration="1" content_type="text"> Andreae,~M O. and Merlet,~P.: Emissions of trace gases and aerosols from biomass burning, Global Biogeochem. Cy., 15, 955–966, doi:10.1029/2000GB001382, 2001. </reference>
		<reference numeration="2" content_type="text"> Andres,~R J., Fielding,~D J., Marland,~G., Boden,~T A., and Kumar,~N.: Carbon dioxide emissions from fossil-fuel use, 1751–1950, Tellus, 51, 759–765, 1999. </reference>
		<reference numeration="3" content_type="text"> Arndt,~R L., Carmichael,~G R., Streets,~D G., and Bhatti,~N.: Sulfur dioxide emissions and sectorial contributions to sulfur deposition in Asia, Atmos. Environ., 31, 1553–2310, doi:10.1016/S1352-2310(96)00236-1, 1997. </reference>
		<reference numeration="4" content_type="text"> Benkovitz,~C M., Scholtz,~M T., Pacyna,~J., Tarrasón,~L., Dignon,~J., Voldner,~E C., Spiro,~P A., Logan,~J A., and Graedel,~T E.: Global gridded inventories of anthropogenic emissions of sulphur and nitrogen, J Geophys. Res, 101(D22), 29239–29253, doi:10.1029/96JD00126, 1996. </reference>
		<reference numeration="5" content_type="text"> Bingham,~T H., Cooley,~P C., Fogel,~M E., Johnston,~D R., LeSourd,~D A., Miedema,~A K., Paddock,~R E., Simons Jr.,~M., and Wisler,~M M.: A~projection of the effectiveness and costs of a~national tax on sulfur emissions final report, Research Triangle Institute, Research Triangle Park, North Carolina, RTI Project No 41U-757, 1976. </reference>
		<reference numeration="6" content_type="text"> Bond,~T C., Bhardwaj,~E., Dong,~R., Jogani,~R., Jung,~S., Roden,~C., Streets,~D G., and Trautmann,~N M.: Historical emissions of black and organic carbon aerosol from energy-related combustion, Global Biogeochem. Cy., 21, GB2018, doi:10.1029/2006GB002840, 1850–2000, 2001. </reference>
		<reference numeration="7" content_type="text"> Bond,~T C., Streets,~D G., Yarber,~K F., Nelson,~S M., Woo,~J.-H., and Klimont,~Z.: A~technology-based global inventory of black and organic carbon emissions from combustion, J Geophys. Res., 109, D14203, doi:10.1029/2003JD003697, 2004. </reference>
		<reference numeration="8" content_type="text"> Center for International Earth Science Information Network (CIESIN), Columbia University; and Centro Internacional de Agricultura Tropical (CIAT), Gridded Population of the World Version 3 (GPWv3): Population Density Grids, Palisades, NY, Socioeconomic Data and Applications Center (SEDAC), Columbia University, available at: http://sedac.ciesin.columbia.edu/gpw, 2005. </reference>
		<reference numeration="9" content_type="text"> Cofala,~J., Amann,~M., Klimont,~Z., Kupiainen,~K., and Höglund-Isaksson,~L.: Scenarios of global anthropogenic emissions of air pollutants and methane until 2030, Atmos. Environ., 41(38), 8486–8499, doi:10.1016/j.atmosenv.2007.07.010, 2007. </reference>
		<reference numeration="10" content_type="text"> Eggleston,~S., Buendia,~L., Miwa,~K., Ngara,~T., and Tanabe,~K. (Eds.): 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Intergovernmental Panel on Climate Change, IGES, Japan, 2006. </reference>
		<reference numeration="11" content_type="text"> Endresen,~Ø., Sørgard,~E., Behrens,~H L., Brett,~P O., and Isaksen,~I S A.: A~historical reconstruction of ships&apos; fuel consumption and emissions, J Geophys. Res., 112, D12301, doi:10.1029/2006JD007630, 2007. </reference>
		<reference numeration="12" content_type="text"> Energy Information Administration (EIA 2008): International Energy Annual 2006, Washington DC, http://www.eia.doe.gov, 2004. </reference>
		<reference numeration="13" content_type="text"> Energy Information Administration (EIA 2009), Annual Energy Review 2008, Washington DC, DOE/EIA-0384, 2009. </reference>
		<reference numeration="14" content_type="text"> Environment Canada: 1985–2006 Historical \chemSO_x Emissions for Canada (Version 2, 8 April 2008), http://www.ec.gc.ca/, 2008. </reference>
		<reference numeration="15" content_type="text"> Etemad,~B., Bairoch,~P., Luciani,~J., and Toutain,~J.-C.: World energy production 1800–1985, Libraire Droz, Geneve, 272~pp., 1991. </reference>
		<reference numeration="16" content_type="text"> European Environment Agency (EEA): Anthropogenic emissions of sulphur (1980–2010) in the ECE region (September~2000), 2002. </reference>
		<reference numeration="17" content_type="text"> Eyring,~V., Isaksen,~I S A., Berntsen,~T., Collins,~W J., Corbett,~J J., Endresen,~O., Grainger,~R G., Moldanova,~J., Schlager,~H., and Stevenson,~D S.: Transport impacts on atmosphere and climate: shipping, Atmos. Environ., doi:10.1016/j.atmosenv.2009.04.059, in press, 2009. </reference>
		<reference numeration="18" content_type="text"> FAOSTAT: http://faostat.fao.org/, accessed: March 2009. </reference>
		<reference numeration="19" content_type="text"> Fernandes,~S D., Trautmann,~N M., Streets,~D G., Roden,~C A., and Bond,~T C.: Global biofuel use, 1850–2000, Global Biogeochem. Cy., 21, GB2019, doi:10.1029/2006GB002836, 2007. </reference>
		<reference numeration="20" content_type="text"> Fletcher,~M E.: From coal to oil in British shipping, in: The World of Shipping, edited by: Williams,~D M., Aldershot, Hants, England, Ashgate, Brookfield VT, 1997. </reference>
		<reference numeration="21" content_type="text"> Foell,~W., Amann,~M., Carmichael,~G., Chadwick,~M., Hettelingh,~J., Hordijk,~L., and Dianwu,~Z. (Eds.): RAINS-Asia: an assessment model for air pollution in Asia, 1995. </reference>
		<reference numeration="22" content_type="text"> Forster,~P., Ramaswamy,~V., Artaxo,~P., Berntsen,~T., Betts,~R., Fahey,~D W., Haywood,~J., Lean,~J., Lowe,~D C., Myhre,~G., Nganga,~J., Prinn,~R., Raga,~G., Schulz,~M., and Van Dorland,~R.: Changes in atmospheric constituents and in radiative forcing. In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Solomon,~S D., Qin,~M. Manning,~Z., Chen,~M., Marquis,~K B., Averyt,~M., Tignor, M., and Miller,~H L., Cambridge University Press, Cambridge, UK, New York, NY, USA, 129–234, 2007. </reference>
		<reference numeration="23" content_type="text"> Fujita,~S.: Sanseiu kenkyu 100 nen no rekishi to sono hensen, J Res. Environ., 29, 82–88, 1993. </reference>
		<reference numeration="24" content_type="text"> Garg,~A., Shukla,~P R., and Kapshe,~M.: The sectoral trends of multigas emissions inventory of India, Atmos. Environ., 40, 4608–4620, 2006. </reference>
		<reference numeration="25" content_type="text"> Goldewijk,~K., van Drecht,~G., and Bouwman, A. F.: Mapping contemporary global cropland and grassland distributions on a~5×5 \unitmin resolution, J. Land Use Sci., 2, 167–190, 2007. </reference>
		<reference numeration="26" content_type="text"> Goldewijk,~K.: Three centuries of global population growth: a~spatial referenced population (density) database for 1700–2000, Popul. Environ., 26, 343–367, doi:10.1007/s11111-005-3346-7, 2005. </reference>
		<reference numeration="27" content_type="text"> Gottwald,~M., Bovensmann,~H., Lichtenberg,~G., Noel,~S., von Bargen,~A., Slijkhuis,~S., Piters,~A., Hoogeveen,~R., von Savigny,~C., Buchwitz,~M., Kokhanovsky,~A., Richter,~A., Rozanov,~A., Holzer-Popp,~T., Bramstedt,~K., Lambert,~J.-C., Skupin,~J., Wittrock,~F., Schrijver,~H., Burrows,~J P.: SCIAMACHY, Monitoring the Changing Earth&apos;s Atmosphere, 2nd edition, published by DLR, in preparation, 2010. </reference>
		<reference numeration="28" content_type="text"> Gregg,~J S., Andres,~R J., and Marland,~G.: China: the emissions pattern of the world leader in \chemCO_2 emissions from fossil fuel consumption and cement production, Geophys. Res. Lett., 35, L08806, doi:10.1029/2007GL032887, 2008. </reference>
		<reference numeration="29" content_type="text"> Gschwandtner,~G., Gschwandtner,~K., Eldridge,~K., Mann,~C., Mobley,~D.: Historic emissions of sulfur and nitrogen oxides in the United States from 1900 to 1980, JAPCA J. Air Waste Ma., 36, 139–149, 1986. </reference>
		<reference numeration="30" content_type="text"> IEA: IEA Clean Coal Centre, Coal Power database, http://www.iea-coal.org.uk, 2008. </reference>
		<reference numeration="31" content_type="text"> International Energy Agency/Organization for Economic Cooperation and Development (IEA/OECD): Energy Statistics and Balances, International Energy Agency, Paris, 2006. </reference>
		<reference numeration="32" content_type="text"> Klimont,~Z., Cofala,~J., Xing,~J., Wei,~W., Zhang,~C., Wang,~S., Kejun,~J., Bhandari,~P., Mathur,~R., Purohit,~P., Rafaj,~P., Chambers,~A., Amann,~M., and Hao,~J.: Projections of \chemSO_2, NO&lt;sub&gt;x&lt;/sub&gt; and carbonaceous aerosols emissions in Asia, Tellus B, 61, 602–617, 2009. </reference>
		<reference numeration="33" content_type="text"> Klimont,~Z., Cofala,~J., Schöpp,~W., Amann,~M., Streets,~D G., Ichikawa,~Y., and Fujita,~S.: Projections of \chemSO_2, NO&lt;sub&gt;x&lt;/sub&gt;, \chemNH_3 and VOC emissions in East Asia up to 2030, J. Water Air Soil Pollut., 130, 193–198, 2001. </reference>
		<reference numeration="34" content_type="text"> Krotkov,~N A., McClure,~B., Dickerson,~R R., Carn,~S A., Li,~C., Bhartia,~P K., Yang,~K., Krueger,~A J., Li,~Z., Levelt,~P F., Chen,~H., Wang,~P., and Lu,~D.: Validation of \chemSO_2 retrievals from the ozone monitoring instrument over NE China, J. Geophys. Res., 113, D16S40, doi:10.1029/2007JD008818, 2008. </reference>
		<reference numeration="35" content_type="text"> Lamarque,~J F., Bond,~T C., Eyring,~V., Granier,~C., Heil,~A., Klimont,~Z., Lee,~D S., Liousse,~C., Mieville,~A., Owen,~B., Schultz,~M., Shindell,~D., Smith,~S J., Stehfest, E, van Aardenne,~J., Cooper,~O., Kainuma,~M., Mahowald,~N., McConnell,~J R., Riahi,~K., and Van Vuuren,~D.: Historical (1850–2000) gridded anthropogenic and biomass burning emissions of reactive gases and aerosols, Methodol. App., submitted, 2010. </reference>
		<reference numeration="36" content_type="text"> Leacy,~F H. (ed.): Historical Statistics of Canada (2nd edition), edited by: Urquhart,~M C. and Buckley,~K A H., Statistics Canada and Social Science Federation of Canada, Ottawa (1st edition), available at: http://www.statcan.gc.ca/, 1983. </reference>
		<reference numeration="37" content_type="text"> Lefohn,~A S., Husar,~J D., Husar,~R B.: Estimating historical anthropogenic global sulfur emission patterns for the period 1850–1990, Atmos. Environ. 33, 3435–3444, 1999. </reference>
		<reference numeration="38" content_type="text"> Li,~C., Zhang,~Q., Krotkov,~N A., Streets,~D G., He,~K., Tsay,~S.-C., and Gleason,~J F.: Recent large reduction in sulfur dioxide emissions from Chinese power plants observed by the Ozone Monitoring Instrument, Geophys. Res. Lett., 37, L08807, doi:10.1029/2010GL042594, 2010. </reference>
		<reference numeration="39" content_type="text"> Logan,~J.: Diverging energy and economic growth in China: where has all the coal gone?, Pac. Asian J. Energ., 11, 1–13, 2001. </reference>
		<reference numeration="40" content_type="text"> Lu,~Z., Streets,~D G., Zhang,~Q., Wang,~S., Carmichael,~G R., Cheng,~Y F., Wei,~C., Chin,~M., Diehl,~T., and Tan,~Q.: Sulfur dioxide emissions in China and sulfur trends in East Asia since 2000, Atmos. Chem. Phys. Discuss, 10, 8657–8715, doi:10.5194/acpd-10-8657-2010, 2010. </reference>
		<reference numeration="41" content_type="text"> McKeever,~D B.: The United States woodpulp industry, Resour. Bull. FPL-RB-18, US Department of Agriculture, Forest Service, Forest Products Laboratory, Madison, WI, 29, 1987. </reference>
		<reference numeration="42" content_type="text"> Mieville,~A., Granier,~C., Liousse,~C., Guillaume,~B., Mouillot,~F., Lamarque,~J.-F., Greìgoire,~J.-M., and Peìtron,~G.: Emissions of gases and particles from biomass burning using satellite data and an historical reconstruction, Atmos. Environ., 44(11), 1469–1477, doi:10.1016/j.atmosenv.2010.01.011, 2010. </reference>
		<reference numeration="43" content_type="text"> Mitchell,~B R.: International Historical Statistics: The Americas 1750–1993, Macmillan Reference, London, 1998a. </reference>
		<reference numeration="44" content_type="text"> Mitchell,~B R.: International Historical Statistics: Africa, Asia &amp; Oceania, 1750–1993, Macmillan Reference, London, 1998b. </reference>
		<reference numeration="45" content_type="text"> Mitchell,~B R.: International Historical Statistics: Europe, 1750–1993, Macmillan Reference, London, 1998c. </reference>
		<reference numeration="46" content_type="text"> Moss,~R H., Edmonds,~J A., Hibbard,~K., Carter,~T., Emori,~S., Kainuma,~M., Kram,~T., Manning,~M., Meehl,~J., Mitchell,~J., Nakicenovic,~N., Riahi,~K., Rose,~S., Smith,~S J., Stouffer,~R., Thomson,~A M., VanVuuren,~D., Weyant,~J., and Wilbanks,~T.: Representative concentration pathways: a~new approach to scenario development for the IPCC Fifth Assessment Report, Nature, 463, 747–756, 2010. </reference>
		<reference numeration="47" content_type="text"> Mylona,~S.: Sulphur dioxide emissions in Europe 1880–1991 and their effect on sulphur concentrations and depositions, Tellus, 48B, 662–689, 1996. </reference>
		<reference numeration="48" content_type="text"> Nakicenovic,~N. and Swart,~R. (Eds.): Emissions Scenarios 2000: Special Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge, UK, 2001. </reference>
		<reference numeration="49" content_type="text"> National Imagery and Mapping Agency (NIMA): Road network data extracted from the Vector Map Level 0, available at: http://earth-info.nga.mil/publications/vmap0.html, 1997. </reference>
		<reference numeration="50" content_type="text"> National Institute of Environmental Research-Korea (NIER): http://airemiss.nier.go.kr/, downloaded 9 November 2008. </reference>
		<reference numeration="51" content_type="text"> Ohara,~T., Akimoto,~H., Kurokawa,~J., Horii,~N., Yamaji,~K., Yan,~X., and Hayasaka,~T.: An Asian emission inventory of anthropogenic emission sources for the period 1980–2020, Atmos. Chem. Phys., 7, 4419–4444, doi:10.5194/acp-7-4419-2007, 2007. </reference>
		<reference numeration="52" content_type="text"> Olivier,~J G J. and Berdowski,~J J M.: Global emissions sources and sinks, In: The Climate System, edited by: Berdowski,~J., Guicherit,~R., and Heij,~B J., A A Balkema Publishers/Swets &amp; Zeitlinger Publishers, Lisse, The Netherlands, available at: http://arch.rivm.nl/env/int/coredata/edgar/, 33–78, 2001. </reference>
		<reference numeration="53" content_type="text"> Olivier,~J G J., Bouwman,~A F., Van der Maas,~C W M., Berdowski,~J J M., Veldt,~C., Bloos,~J P J., Visschedijk,~A J H., Zandveld,~P Y J., and Haverlag,~J L.: Description of EDGAR Version 2.0: a~set of global emission inventories of greenhouse gases and ozone-depleting substances for all anthropogenic and most natural sources on a~per country basis and on 1×1 degree grid, National Institute of Public Health and the Environment (RIVM) report no. 771060 002$/$TNO-MEP report no. R96/119, 1996. </reference>
		<reference numeration="54" content_type="text"> Olivier,~J G J., Van Aardenne,~J A., Dentener,~F., Pagliari,~V., Ganzeveld,~L N., and Peters,~J A H W.: Recent trends in global greenhouse gas emissions: regional trends 1970–2000 and spatial distribution of key sources in 2000, Environ. Sci., 2(2–3), 81–99, doi:10.1080/15693430500400345, 2005. </reference>
		<reference numeration="55" content_type="text"> Öm,~G., Hansson,~U., and Rodhe,~H.: Historical worldwide emissions of anthropogenic sulfur: 1860–1985, Department of Meteorology, Stockholm University, Report CM-91, 1996. </reference>
		<reference numeration="56" content_type="text"> Platts: The UDI World Electric Power Plants Data Base (WEPP) Copyright C 2006, Platts, a~division of The McGraw-Hill Companies, Inc 1200 G St NW Ste 1000 Washington, DC, 20005 USA, 2006. </reference>
		<reference numeration="57" content_type="text"> Ryaboshapko,~A G., Brukhanov,~P A., Gromov,~S A., Proshina,~Y V., and Afinogenova,~O G.: Anthropogenic emissions of oxidized sulfur and nitrogen into the atmosphere of the Former Soviet Union in 1985 and 1990, Department of Meteorology, Stockholm University, Report CM-89, 1996. </reference>
		<reference numeration="58" content_type="text"> Schöpp,~W., Klimont,~Z., Suutari,~R., Cofala,~J.: Uncertainty analysis of emission estimates in the RAINS integrated assessment model, Environ. Sci. Policy, 8, 601–613, 2005. </reference>
		<reference numeration="59" content_type="text"> Schultz,~M G., Heil,~A., Hoelzemann,~J J., Spessa,~A., Thonicke,~K., Goldammer,~J., Held,~A C., Pereira,~J M., and van het Bolscher,~M.: Global wildland fire emissions from 1960 to 2000, Global Biogeochem. Cy., 22, GB2002, doi:10.1029/2007GB003031, 2008. </reference>
		<reference numeration="60" content_type="text"> Smith,~S J., Andres,~R., Conception,~E., and Lurz,~J.: Sulfur Dioxide Emissions: 1850–2000, JGCRI Report PNNL-14537, 2004. </reference>
		<reference numeration="61" content_type="text"> Smith,~S J., Pitcher,~H., and Wigley,~T M L.: Global and regional anthropogenic sulfur dioxide emissions, Global Planet Change, 29(1–2), 99–119, 2001. </reference>
		<reference numeration="62" content_type="text"> Smith,~S J., Pitcher,~H., and Wigley,~T M L.: Future sulfur dioxide emissions, Climatic Change, 73(3), 267–318, 2005. </reference>
		<reference numeration="63" content_type="text"> Spiro,~P A., Jacob,~D J., and Logan,~J A.: Global inventory of sulfur emissions with a~1\unit\degree×1\unit\degree resolution, J. Geophys. Res., 97, 6023–6036, 1992. </reference>
		<reference numeration="64" content_type="text"> Stern,~D I.: Reversal of the trend in global anthropogenic sulfur emissions, Global Environ. Change, 16, 207–220, 2006. </reference>
		<reference numeration="65" content_type="text"> Streets,~D G., Tsai,~N Y., Akimoto,~H., and Oka,~K.: Sulfur dioxide emissions in Asia in the period 1985–1997, Atmos. Environ., 34, 4413–4424, 2000. </reference>
		<reference numeration="66" content_type="text"> Streets,~D G., Bond,~T C., Carmichael,~G R. et~al.: An inventory of gaseous and primary aerosol emissions in Asia in the year 2000, J. Geophys. Res., 108, 8809, doi:10.1029/2002JD003093, 2003. </reference>
		<reference numeration="67" content_type="text"> Streets,~D G. and Waldhoff,~S T.: Present and future emissions of air pollutants in China: \chemSO_2, NO&lt;sub&gt;x&lt;/sub&gt;, and CO, Atmos. Environ., 34, 363–374, 2000. </reference>
		<reference numeration="68" content_type="text"> US Environmental Protection Agency (USEPA): National Air Pollutant Emission Trends, 1900–1995, EPA-454/R-96-007, Washington DC, 1996a. </reference>
		<reference numeration="69" content_type="text"> US Environmental Protection Agency (USEPA): AP-42, Fifth Edition, Research Triangle Park, NC, 1996b. </reference>
		<reference numeration="70" content_type="text"> Map and table of world copper smelters: US Geological Survey Open File-Report 03-75, US Geological Survey, Reston, Virginia, 2003. </reference>
		<reference numeration="71" content_type="text"> UK National Atmospheric Emissions Inventory: available at: http://www.naei.org.uk/, 2009. </reference>
		<reference numeration="72" content_type="text"> UNFCCC: National Inventory Submissions of Annex I Parties to the UNFCCC, available at: http://unfccc.int/, 2008. </reference>
		<reference numeration="73" content_type="text"> United Nations: The United Nations Energy Statistics Database (1995) United Nations Statistics Division, New York, June, 1996. </reference>
		<reference numeration="74" content_type="text"> United Nations Environmental Program: Sulphur Levels in Diesel Fuel Matrix tables, various regions, Partnership for Clean Fuel and Vehicles, access: 10 Sep 2008. </reference>
		<reference numeration="75" content_type="text"> United Nations Framework Convention on Climate Change, UNFCC 2009, 2008 Country submissions, access: 1 February 2009, available at: http://unfccc.int/, 2008. </reference>
		<reference numeration="76" content_type="text"> Van Aardenne,~J A., Dentener,~F J., Olivier,~J G J., Klein Goldewijk,~C G M., and Lelieveld,~J.: A~1×1 degree resolution dataset of historical anthropogenic trace gas emissions for the period 1890–1990, Global Biogeochem. Cy., 15, 909–928, 2001. </reference>
		<reference numeration="77" content_type="text"> Van der Werf,~G R., Randerson,~J T., Giglio,~L., Collatz,~G J., Kasibhatla,~P S., Collatz,~G J., Kasibhatla,~P S., and Arellano,~A F.: Interannual variability in global biomass burning emissions from 1997 to 2004, Atmos. Chem. Phys., 6, 3423–3441, 2006. </reference>
		<reference numeration="78" content_type="text"> Van Vuuren,~D., Smith,~S J., and Riahi~K.: Downscaling drivers of global environmental scenarios, Wiley Interdisciplinary Reviews: Climate Change, published on-line: 16 April 2010. </reference>
		<reference numeration="79" content_type="text"> Van Vuuren,~D P., Meinshausen,~M., Plattner,~G.-K., Joos,~F., Strassmann,~K M., Smith,~S J., Wigley,~T M L., Raper,~S C B., Riahi,~K., de la Chesnaye,~F., den Elzen,~M., Fujino,~J., Jiang,~K., Nakicenovic,~N., Paltsev,~S., and Reilly,~J M.: Temperature increase of 21st century mitigation scenarios, P. Natl. Acad. Sci. USA, 105, 15258–15262, 2008. </reference>
		<reference numeration="80" content_type="text"> Vestreng,~V., Myhre,~G., Fagerli,~H., Reis,~S., and Tarrasón,~L.: Twenty-five years of continuous sulphur dioxide emission reduction in Europe, Atmos. Chem. Phys., 7, 3663–3681, doi:10.5194/acp-7-3663-2007, 2007. </reference>
		<reference numeration="81" content_type="text"> Xu,~Y., Williams,~R H., and Socolow,~R H.: China&apos;s rapid deployment of \chemSO_2 scrubbers, Energ. Environ. Sci., 2, 459–465. 2009. </reference>
		<reference numeration="82" content_type="text"> Yevich,~R. and Logan,~J.: An assessment of biofuel use and burning of agricultural waste in the developing world, Global Biogeochem. Cy., 17, 1095–1034, doi:10.1029/2002GB001952, 2003. </reference>
		<reference numeration="83" content_type="text"> Zhang,~Q., Streets,~D G., Carmichael,~G R., He,~K B., Huo,~H., Kannari,~A., Klimont,~Z., Park,~I S., Reddy,~S., Fu,~J S., Chen,~D., Duan,~L., Lei,~Y., Wang,~L T., and Yao,~Z L.: Asian emissions in 2006 for the NASA INTEX-B mission, Atmos. Chem. Phys., 9, 5131–5153, doi:10.5194/acp-9-5131-2009, 2009. </reference>
	</references>
</article>

