饮食碳足迹计算器
使用饮食碳足迹计算器估算日常饮食习惯产生的CO₂排放量。比较肉类、素食和纯素饮食的碳足迹差异，了解食物选择对环境的影响并做出更环保的决定。
lbs
lbs
lbs
lbs
Annual Diet CO2
2.45 metric tons
Beef CO21.27 metric tons
Poultry CO20.33 metric tons
Dairy & Plant CO20.85 metric tons
Annual Diet CO2 vs Weekly Beef
公式
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)
Formula
Annual CO2 = Sum of (Weekly lbs * 52 * Emission Factor) / 2,204.6
计算示例
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
常见问题
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.