温室气体排放计算器 — 公式

How to Calculate Greenhouse Gas Equivalents

Different greenhouse gases have different warming potentials. Converting to CO2-equivalent (CO2e) allows comparison.

Global Warming Potentials (GWP-100)

  • CO2: 1x (baseline)
  • Methane (CH4): 28x
  • Nitrous Oxide (N2O): 265x

    • Formula

    Total CO2e = CO2 + (CH4 * 28) + (N2O * 265)

    计算示例

    A facility emits 100 tons CO2, 5 tons CH4, and 1 ton N2O per year.

    1. CO2 contribution: 100 metric tons CO2e
    2. Methane: 5 * 28 = 140 metric tons CO2e
    3. Nitrous oxide: 1 * 265 = 265 metric tons CO2e
    4. Total: 100 + 140 + 265 = 505 metric tons CO2e
    5. Non-CO2 share: (140 + 265) / 505 * 100 = 80.2%