Based on environmental input-output analysis, the authors try to identify the impetus of Chinese household consumption of carbon emissions in structural path analysis (SPA). The results indicate that, in 2012, most of the carbon emissions of Chinese household are indirect emissions, mainly from power, services, agriculture, food, wholesale and retail, transportation, postal. Carbons emissions from fertilizer and pesticide production in chemistry contribute a lot to the agricultural sector, therefore agricultural policies should properly limit the use of those chemical productions to reduce the emission. In addition, the difference of the income and consumption structure between urban and rural residents is the key factors which lead to the gap between of their carbon emission.

Based on the relevant planning objectives, life-cycle emission reduction capacities and costs of eight categories of emission reduction technology of China’s power sector are analyzed. The results indicate that the total emission reduction capacity amounts to 2099.0-2070.3 MtCO_2e. The emission reductions generated by hydropower and nuclear power are the biggest, accounting for 62.90% to 63.34% together. The total cost is projected to be 330.76 billion RMB. The lowest cost, by hydropower, is -783.0 billion RMB, while the highest, by biomass power, is 168.75 billion RMB. The average unit cost of reducing emissions is between 157.6 to 159.8 RMB/tCO_2e. Hydropower and nuclear power have the lowest unit abatement costs, -104.3- -104.8 RMB/tCO_2e and 13.2-13.3 RMB/tCO_2e respectively, while natural gas power has the highest, 958.8?1598.0 RMB/tCO_2e. Overall, the hydropower and nuclear power generate relatively low unit abatement costs and big emission reduction capacities. Thus, China should focus on the development of these two types of new energy in the future.

A risk analysis model was established to predict Chinese aviation passenger ticket price changes from 2012 to 2020 due to the EU aviation carbon trading policy. Then the authors analyzed the impacts to aviation passenger transport fee, income, profits and carbon dioxide emissions, and discussed the influence on air travel and the airline industry. The results show that 1) the emission reduction caused by European Union (EU) aviation carbon trading policy is limited; 2) aviation passenger prices, airline fee, and carbon emission reduction would increase, and insufficient quota, income reduction, profit loss would be aggravated gradually. There would be 200 million loss till 2020.

The authors investigate greenhouse gas (GHG) emissions of the Chinese economy by producing sectors from production-based and consumption-based perspectives. A sectoral GHG emissions matrix is built based on Chinese Economic Input-Output Life Cycle Assessment (EIO-LCA) Model 2007 to incorporate the two perspectives in the same analysis framework. This matrix provides a better understanding of the relationship between GHG emissions from production and final demand. The results show that electric and heat power sector contributes the most direct emissions, 36.24% of total emissions, of which 93.91% are due to the production for other sectors, especially construction sector. Final demand for construction sector acounts for the highest embodied emissions, 29.79% of total emissions, of which 97.10% are emitted in other sectors of the supply chain, especially electric and heat power sector. Electric and heat power sector holds the top embodied emission intensity of 9.88 ton CO₂-eq/104 yuan, of which direct emission intensity contributes 89.70%.

Total air pollutant emission control planning is a major urban environmental management approach. A set of technical schemes have been developed, which are applicable to study the calculational and distributive method of the total quantity control for urban air pollutant emission in China. The permitted total emission equivalent quantity of urban air pollutants and its distribution in urban area, which can be used as regional air pollution control index and can be allocated to each major pollution source as its limit of emission quantity, can be worked out by using linear programming model based on regional grid air pollutants transfer matrix which considers the difference of functional regions and the justice of the permitted emission's distribution. The application of the technical paths and models in Jinan, indicates that it is reasonable and feasible.

In order to promote the development of regional strategic environmental assessment in China, the authors illustrate the use of Input-Output approach in the environmental impact assessment of industry adjustment with the case study in Yuxi city of Yunnan province. The following were major conclusions: firstly, the environmental economic static Input-Output model can be a useful tool for predicting the changes of waste disposal and resource depletion; secondly, industry adjustment is effective in alleviating the pressure on the environmental system; finally, the adjusted industry structure still imposes some pressure on the environmental system, therefore, accompanied measures in technology renovation, labor force structure adjustment and environmental protection policies should be made to attain the goal of industry structure adjustment.

Urban air pollution is a quite severe problem in China. Imposing restriction on total emission quantity of air pollutants will be a major environmental management measure to have the situation control. Based on several case studies, the method of working out a total emission quantity plan for control of air pollution has been developed, and the concept of emission equivalent was introduced. The permitted total emission equivalent quantity of urban air pollutants and its distribution in urban area, which can be used as regional air pollution control index and can be allocated to each major pollution source to determinate its permitted emission quantity, can be worked out by making up regional air pollutants shift matrix and by using linear programming model. We have applied this method in the total emission quantity control plan of urban air pollutants and discovered that permitted emission quantity of urban air pollutants is in direct proportion to emission height's α power. α is a parameter that provide scientific basis for allocating total permitted emission quantity. It ranges from 0 to 1 and equals 0.80 in Jinan city.