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Emissions factors convert activity data (fuel burned, electricity used) to greenhouse gas emissions. They vary by fuel type, region, year.
Wzór
Emissions = Activity × Emissions Factor
Przewodnik krok po kroku
- 1Emissions = Activity × Emissions Factor
- 2Gasoline: ~2.3 kg CO₂/liter, electricity: 0.2-0.8 kg CO₂/kWh (regional)
- 3Factor varies with grid composition (coal heavy = higher)
Rozwiązane przykłady
Wejście
Drive 1000 km, car uses 5 L/100km, total 50 L fuel
Wynik
50 L × 2.3 kg CO₂/L = 115 kg CO₂ emissions
Typical car trip
Częste błędy do unikania
- ✕Using national average when regional factor available
- ✕Forgetting to account for upstream emissions
Często zadawane pytania
Why do electricity emissions vary by region?
Coal-heavy grids (high factor), nuclear/wind grids (low factor). US average ~0.4, coal region ~0.8 kg CO₂/kWh.
Are lifecycle emissions included?
Basic factors only include combustion. Full lifecycle includes extraction, production, transport.
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