Methane GWP Horizon Comparison Rechner — Formel
## Methane to CO2 Equivalence
Methane (CH4) is a potent greenhouse gas that traps far more heat per molecule than CO2 but breaks down faster in the atmosphere.
### Formula
**CO2-Equivalent = Methane Mass (kg) x GWP Factor**
The 20-year GWP of methane is about 80, reflecting its intense short-term warming. The 100-year GWP is about 28, accounting for atmospheric breakdown. The choice of time horizon significantly affects policy priorities.
Methane (CH4) is a potent greenhouse gas that traps far more heat per molecule than CO2 but breaks down faster in the atmosphere.
### Formula
**CO2-Equivalent = Methane Mass (kg) x GWP Factor**
The 20-year GWP of methane is about 80, reflecting its intense short-term warming. The 100-year GWP is about 28, accounting for atmospheric breakdown. The choice of time horizon significantly affects policy priorities.
Lösungsbeispiel
A landfill releases 500 kg of methane per year.
- 20-year CO2e = 500 x 80 = 40,000 kg CO2e
- 100-year CO2e = 500 x 28 = 14,000 kg CO2e
- In tonnes (100-yr): 14,000 / 1,000 = 14 tonnes CO2e