Diet Carbon Footprint Calculator
Estimate the carbon footprint of your diet based on weekly consumption of meat, dairy, grains, and vegetables.
Annual Diet CO2
2.45 metric tons
Annual Diet CO2 vs Weekly Beef
Formula
## How to Calculate Your Diet's Carbon Footprint Food production is a major source of greenhouse gas emissions, varying widely by food type. ### Emission Factors (lbs CO2 per lb of food) - **Beef**: ~27 lbs CO2/lb - **Poultry**: ~6.9 lbs CO2/lb - **Dairy**: ~3.2 lbs CO2/lb - **Grains & Vegetables**: ~2.0 lbs CO2/lb ### Formula **Annual CO2 = Sum of (Weekly lbs * 52 * Emission Factor) / 2,204.6**
Esempio Risolto
A person eats 2 lbs beef, 2 lbs poultry, 5 lbs dairy, and 10 lbs grains/veg per week.
- 01Beef: 2 * 52 * 27 / 2,204.6 = 1.27 metric tons
- 02Poultry: 2 * 52 * 6.9 / 2,204.6 = 0.33 metric tons
- 03Dairy: 5 * 52 * 3.2 / 2,204.6 = 0.38 metric tons
- 04Plants: 10 * 52 * 2.0 / 2,204.6 = 0.47 metric tons
- 05Total: 1.27 + 0.33 + 0.38 + 0.47 = 2.45 metric tons/year
Domande Frequenti
Why does beef have such high emissions?
Cattle produce methane during digestion and beef farming requires extensive land, water, and feed. Methane is about 28x more potent than CO2.
How much can going vegetarian reduce emissions?
Eliminating meat can reduce diet-related emissions by 50-70%. A vegan diet can cut dietary emissions by up to 75%.
Are local foods better for emissions?
Transportation accounts for only 5-10% of food emissions. What you eat matters more than where it comes from.