Kaya Identity Calculator
Sustainability & EnvironmentEstimate total CO2 emissions from population, GDP per capita, energy intensity, and carbon intensity.
CO2 emissions
Total estimated annual CO2 emissions
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Odeh Ahwal0people find this calculator helpful
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Sustainability & Environment calculators
Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Sustainability & Environment calculators
Frequently Asked Questions
What is the Kaya identity?
The Kaya identity is an equation that breaks total CO2 emissions down into four factors: population, GDP per person, the energy needed per dollar of GDP, and the carbon emitted per unit of energy.
What does the Kaya identity show for a population of 1 million with a GDP per capita of $40,000?
With an energy intensity of 4 MJ per dollar and a carbon intensity of 50 grams CO2 per MJ, this population would emit about 8 million tons of CO2 a year.
Why is the Kaya identity useful?
It shows the four separate levers, population, wealth, energy efficiency, and energy cleanliness, that all influence a region total emissions, helping identify where policy can have the most impact.
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