Household CO_2 emissions were increasing due to rapid economic growth and different household lifestyle. We assessed per capita household CO_2 emissions(PHCEs) based on different household consuming demands(including clothing, food, residence, transportation and service) by using provincial capital city level survey data in China. The results showed that:(1) there was a declining trend moving from eastward to westward as well as moving from northward to southward in the distribution of PHCEs.(2) PHCEs from residence demand were the largest which accounted for 44% of the total.(3) Correlation analysis and spatial analysis(Spatial Lag Model(SLM) and Spatial Error Model(SEM)) were used to evaluate the complex determinants of PHCEs. Per capita income(PI) and household size(HS) were analyzed as the key influencing factors. We concluded that PHCEs would increase by 0.2951% and decrease by 0.5114% for every 1% increase in PI and HS, respectively. According to the results, policy-makers should consider household consuming demand, income disparity and household size on the variations of PHCEs. The urgency was to improve technology and change household consuming lifestyle to reduce PHCEs.
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