The Kaya identity is a mathematical formula stating that the total emission level of carbon dioxide can be expressed as the product of four factors: human population, GDP per capita, energy intensity (energy per unit of GDP), and carbon intensity (emissions per unit of energy). The formula is [latex]F = P \times \frac{G}{P} \times \frac{E}{G} \times \frac{F}{E}[/latex], where F is CO2 emissions, P is population, G is GDP, and E is energy consumption.
The Kaya identity was developed by Japanese energy economist Yoichi Kaya and is a cornerstone of emissions scenario analysis, particularly within the Intergovernmental Panel on Cambio climático (IPCC). It is not a predictive model but an identity—a tautological equation that must be true by definition. Its power lies in decomposing complex CO2 emissions into understandable, quantifiable drivers. The four terms represent: (P) population growth, (G/P) economic growth or affluence, (E/G) energy efficiency of the economy, and (F/E) the huella de carbono of the energy supply. This decomposition allows policymakers and researchers to analyze the leverage of different strategies. For instance, reducing emissions (F) can be achieved by controlling population (P), reducing per capita consumption (G/P), improving energy efficiency (lowering E/G), or decarbonizing the energy supply (lowering F/E). The identity highlights the immense challenge of decarbonization, as economic and population growth have historically driven emissions upward, requiring massive improvements in energy and carbon intensity to achieve net reductions.
DISPONIBLE PARA NUEVOS RETOS
Ingeniero Mecánico, Gerente de Proyectos, Ingeniería de Procesos o I+D
Disponible para un nuevo desafío a corto plazo.
Contáctame en LinkedIn
Integración de electrónica de metal y plástico, diseño a coste, GMP, ergonomía, dispositivos y consumibles de volumen medio a alto, fabricación eficiente, industrias reguladas, CE y FDA, CAD, Solidworks, cinturón negro Lean Sigma, ISO 13485 médico
Estamos buscando un nuevo patrocinador
¿Su empresa o institución se dedica a la técnica, la ciencia o la investigación?
> Envíanos un mensaje <
Recibe todos los artículos nuevos
Gratuito, sin spam, correo electrónico no distribuido ni revendido.
o puedes obtener tu membresía completa -gratis- para acceder a todo el contenido restringido >aquí<
(if date is unknown or not relevant, e.g. "fluid mechanics", a rounded estimation of its notable emergence is provided)
Related Invention, Innovation & Technical Principles
{{title}}
{% if excerpt %}{{ excerpt | truncatewords: 55 }}
{% endif %}
