Orientador: Ademar Ribeiro RomeiroTese (doutorado) - Universidade Estadual de Campinas, Instituto de EconomiaResumo: Em 2009 o consumo agregado das famílias brasileiras somou R1.940bilho~es,ou60 1.200,00 e R5.174,00,nadefinic\ca~odeNeri(2012).Evidentemente,odesenvolvimentodaeconomiabrasileiratemrepercusso~essobreoecossistema.Assim,ateseexaminaasconexo~esentreoconsumodasfamıˊliaseasemisso~esdeGEEnoBrasil.Paratanto,ateselidoucomasemisso~esdomiciliaresbrasileirasassumindoaperspectivadademanda.Istoeˊ,atribuiuoslanc\camentosdosgasesdeefeitoestufa(GEE)aosdemandantesdosbenseservic\cosfinais,ena~oaˋsatividadesgeradoras,bemcomoasemisso~esintermediaˊriasaossetoresdeatividadeecono^micaqueesta~onapontafinaldacadeiaprodutiva,deacordocomseusrequerimentosdeinsumos.Observouquenoperıˊodorecente,poˊs−estabilizac\ca~odosprec\cosnadeˊcadade1990ateˊoanode2009,fasedecrescimentoexpressivodomercadointerno,houveumimportanteaumentodasemisso~es,quesetornarammaisaderentesaocicloecono^mico,exclusiveaquelasdamudanc\cadeusodaterraeflorestas(MUTF).Queacontinuidadedoprocessodeinclusa~odacamadamaispobredapopulac\ca~onosmercadosconsumidoresna~opodeprescindirdocrescimentoecono^mico.Equeocenaˊriobusinessasusual,descontadaaMUTF,implicaemumatrajetoˊriaascendentedasemisso~esnomeˊdio−prazo.Emrelac\ca~oaˋliteraturasobreotema,ateseavanc\counaelaborac\ca~odematrizesdeinsumoprodutocompatibilizadasaosdadosdasemisso~esdeCO2,CH4eN2Opara42setoresemtre^smomentosdasuˊltimasduasdeˊcadas.Investigouasalterac\co~esnospadro~esdeconsumodasfamıˊliaserespectivoslanc\camentosdeGEEcommaiorgraudedesagregac\ca~o,vintisderendadomiciliarpercapita.Decompo^sasemisso~esrelacionadasaoconsumodasfamıˊliasentrediferentesefeitos(composic\ca~o,escala,tecnoloˊgicoedistributivo)ecorroborouahipoˊtesedequeamelhordistribuic\ca~odosnıˊveisdeconsumoentreasfamıˊlias,isoladadeoutrosefeitos,atuaparagerarmaispressa~oambiental.Verificouqueasemisso~espercapitadoconsumodosvintisderendamaiselevadasuperamoespac\codecarbonoprojetadoparaoconsumodosbrasileirosem2030.Eaoredistribuirasemisso~esdomiciliaresconformeacategoriadeconsumodosbens,indicouaalimentac\ca~oeamobilidade(transporteeveıˊculos)comoelementoscentraisparaasmedidasdereduc\ca~odasemisso~es.Ademais,sinalizouqueaPolıˊticaNacionalsobreMudanc\casdoClimana~oalterasuficientementeobusinessasusualdaeconomiabrasileira,eque,pordiferentescriteˊriosnormativoseporsuacontribuic\ca~oabsolutaerelativaparaoaquecimentoglobal,opaıˊsdeveaumentarseusesforc\cosdemitigac\ca~odosGEEAbstract:In2009theBrazilianhouseholdconsumptionreachedR 1,940 billion, or 60% of GDP. It has more than doubled since 1990. The Gini index for inequality of household income decreased from 0.614 to 0.543 (PNAD / IBGE, 2012). Nearly 60 million Brazilians amounted to class C, whose income ranges between R 1,200.00andR 5,174.00 (NERI, 2012). This development cycle has an impact on the ecosystem. So the thesis has taken the Brazilian emissions according to the demand perspective. It means that the responsibilities for GHG were attributed to demand agents. The intermediate emissions from production chain of goods and services were attributed to activity sectors following its input requirements. From price stabilization in the middle of nineties to 2009 the Brazilian gross domestic product has increased substantially, and also its GHG emissions have become more connected to economic performance, excluded those emissions related to Land Use Change and Forestry. Nevertheless, the socioeconomic goals depend on economic growth, while business as usual scenario shows an increase in GHG in the near term, even if net deforestation becomes null. The thesis contributes to the empirical knowledge on GEE emissions: it brings input-output matrices compatible with CO2, CH4 and N2O emissions for three points in the last two decades; it evaluates how the changes on consumption pattern have modified the household emissions taken on vigintiles of per capita income; it decomposes the emissions related to household consumption into three effects, the composition, scale, technological and distributive effect; it reinforces the hypothesis that a less unequal income distribution could increase GHG emissions; it also indicates on a per capita basis that household emissions of rich - the four higher income vigintiles - overcome the carbon budget estimated to Brazilian people in 2030. When distributed according to the consumption category, the emissions due to eating (eating at home, eating out and meat) and mobility (transport and vehicle) are central to mitigation policies. Furthermore, it pointed out that PNMC does not alter the business as usual. For a set of normative criteria Brazil must increase the efforts on mitigation of GHG emissions. The same follows from Brazilian total and comparative contribution to global warmingDoutoradoTeoria EconomicaDoutor em Ciências EconômicasCAPE