Variable: Pollution Emissions Issue Category

QoG Code: (epi_ape)


Dataset: Environmental Performance Index Data 2022

Description:

Pollution Emissions Issue Category consists of 2 indicators:

1) The SO2 growth rate, calculated as the average annual rate of increase or decrease in SO2 over the years 2005-2014. It is then adjusted for economic trends to isolate change due to policy rather than economic fluctuation. First, the EPI team calculates Spearman's correlation coefficient between SO2 emissions and GDP over a ten-year period. Second, they regress logged SO2 emissions over ten years to find a slope. Third, they calculate an unadjusted average annual growth rate in SO2 emissions. Fourth, they adjust the negative growth rates by a factor of 1 - the correlation coefficient.

2) The NOX growth rate, calculated as the average annual rate of increase or decrease in NOX over the years 2005-2014. It is then adjusted for economic trends to isolate change due to policy rather than economic fluctuation. First, the EPI team calculates Spearman's correlation coefficient between NOX emissions and GDP over a ten-year period. Second, they regress logged NOX emissions over ten years to find a slope. Third, they calculate an unadjusted average annual growth rate in NOX emissions. Fourth, they adjust the negative growth rates by a factor of 1 - the correlation coefficient.

Both indicators are given equal weight in the aggregation. The issue category varies from 0 to 100.

Type of variable: Continuous


Last updated by source: 2022-06-06


Categories:

Environment


Find this variable in:

Environmental Indicators - 2021 Original Dataset

Details of this variable in our compilations datasets
Dataset No. Countries
Standard cross-section: 180
OECD cross-section: 36


This variable has information for these countries:

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This variable has information from the year 2019 to the year 2019