Fig. 3: Contribution of each indicator to the change in the industrial processes and product use (IPPU) CO2 emissions in China.

a Boxplots of decomposition factors of IPPU in China during 2000–2020. “Cint” refers to carbon intensity (CO2 emissions per unit of value added by the secondary industry); “CApop” denotes per capita construction area; “ECOca” stands for the changes in the secondary industry’s value leveraged per unit of construction area; and “POP” denotes the population. b The decomposition factor of emission changes over 2000–2020.