Variable | Index Meaning | Unit |
I | CO2 emissions | Ten thousand tons |
P1 | Population size | Ten thousand people |
P2 | Population urbanization rate | % |
A1 | Real GDP per capita | Yuan |
A2 | The second industry | % |
A3 | Private car ownership | Thousands of cars |
T1 | Energy intensity | Tons of standard coal per ten thousand yuan |
T2 | Coal consumption | Ten thousand tons of standard coal |
T3 | Oil consumption | Ten thousand tons of standard coal |