Before revision: It is a mathematically more consistent variation of Paul R. Ehrlich & John Holdren's I=PAT formula that describes the factors of environmental impact.Kaya identity is expressed in the form: Where: F is global emissions from human sources P is global population G is world GDP E is global energy consumption And: G/P is the GDP per capita E/G is the energy intensity of the GDP F/E is the emission intensity of energy Use in IPCC reports The Kaya identity plays a core role in the development of future emissions scenarios in the IPCC Special Report on Emissions Scenarios.
After revision: It is a variation of Paul R. Ehrlich & John Holdren's I=PAT formula that describes the factors of environmental impact.Kaya identity is expressed in the form: Where: F is global emissions from human sources P is global population G is world GDP E is global energy consumption And: G/P is the GDP per capita E/G is the energy intensity of the GDP F/E is the emission intensity of energy Use in IPCC reports The Kaya identity plays a core role in the development of future emissions scenarios in the IPCC Special Report on Emissions Scenarios.