Calculateur d'Équivalent CO₂ du Méthane Gratuit
Convertissez les émissions de méthane en équivalent CO₂. Comparez l'impact du méthane sur le réchauffement climatique.
metric tons CH4
x CO2
CO2 Equivalent
280.0 metric tons CO2e
CO2e at GWP-20 (84x)840.0 metric tons CO2e
CO2e at GWP-100 (28x)280.0 metric tons CO2e
CO2 Equivalent vs Methane Emissions
Formule
How to Convert Methane to CO2 Equivalent
Methane (CH4) is more potent than CO2 but breaks down faster in the atmosphere.
Global Warming Potential (GWP)
Formula
CO2e = Methane (tons) * GWP factor
Exemple Résolu
A facility emits 10 metric tons of methane per year.
- 01CO2e at GWP-100: 10 * 28 = 280 metric tons CO2e
- 02CO2e at GWP-20: 10 * 84 = 840 metric tons CO2e
Questions Fréquentes
Why are there different GWP timeframes?
Methane breaks down over about 12 years. GWP-20 captures near-term potency while GWP-100 averages over a century.
Where does methane come from?
Major sources include livestock, landfills, natural gas systems, rice paddies, and wetlands.
Why does methane matter for climate change?
Despite being present in smaller quantities than CO2, methane is responsible for about 30% of current global warming due to its high potency.