全球变暖潜能值计算器 — 公式

Understanding Global Warming Potential

Global Warming Potential (GWP) compares the heat-trapping ability of a greenhouse gas to CO2 over a specified period, typically 100 years.

Formula

CO2-Equivalent (kg) = Mass of Gas (kg) x GWP Factor

Common GWP-100 values: Methane (CH4) = 28, Nitrous Oxide (N2O) = 265, SF6 = 23,500. A higher GWP means the gas traps more heat per kilogram than CO2.

计算示例

A farm releases 100 kg of methane (GWP = 28) over a year.

  1. CO2-equivalent = 100 kg x 28 = 2,800 kg CO2e
  2. In tonnes: 2,800 / 1,000 = 2.8 tonnes CO2e