Question

1. Illustrate a threshold effect for emissions of a particular pollutant and suggest a situation in which such a threshold effect might exist

Answer 1

Environmental regulation has a threshold effect on CO2 emissions, with vast variations among the eastern, central, and western regions. Environmental regulations in the japanese location were ineffective for curbing CO2 emissions, whilst the energy intensity used to be in the center and low threshold range. Pressure on China to decrease carbon dioxide (CO2) emissions, it is vital to clarify the effect of imposing environmental regulations and their impact on the region. Many studies have centered on the linear, alternatively than nonlinear, relationship between environmental legislation and CO2 emissions. The exploration of nonlinear relations is conducive to the in-depth study of policy consequences and regional differences of environmental guidelines in China. To make sure tremendous CO2 emission reductions, regional variations in CO2 emissions in China need to also be considered. Due to growing pollution, emission threshold requires to restrict the CO2 on air.

an effect in a dependent variable that does not occur until a certain level, or threshold, is reached in an independent variable. For example, a drug may have no effect at all until a certain dosage level (the threshold value) is reached. The change in the dependent variable can be an irreversible dichotomous change (e.g., from functional to not functional), or it can be continuous, such that the dependent variable changes each time the independent variable crosses the threshold in either direction.