Food production is responsible for approximately 26% of global greenhouse gas emissions. From the farm to your plate, every meal carries a carbon cost. Understanding this connection empowers you to make dietary choices that benefit both your health and the planet.

The Carbon Cost of Food Production

Research published by Our World in Data breaks down food system emissions into several stages: land use change (including deforestation), farming, animal feed, processing, transportation, retail, packaging, and waste. Surprisingly, transportation is a relatively small contributor compared to production methods.

Which Foods Have the Highest Carbon Footprint?

Not all foods are created equal when it comes to emissions. Here is how common foods compare per kilogram produced:

• Beef: 60 kg CO2e per kg (the highest by far)
• Lamb: 24 kg CO2e per kg
• Cheese: 21 kg CO2e per kg
• Chocolate: 19 kg CO2e per kg
• Coffee: 17 kg CO2e per kg
• Poultry: 6 kg CO2e per kg
• Rice: 4 kg CO2e per kg
• Tofu: 3 kg CO2e per kg
• Vegetables: 2 kg CO2e per kg (average)
• Fruits: 1 kg CO2e per kg (average)

Why Is Meat So Carbon-Intensive?

Livestock production contributes to climate change through multiple pathways. The Food and Agriculture Organization (FAO) identifies three major sources: enteric fermentation (methane from digestion), manure management, and the vast land needed for feed crops and grazing.

Simple Dietary Shifts That Make a Difference

Reduce Red Meat Consumption

You do not need to go fully vegetarian to make a difference. Replacing beef with poultry or plant-based proteins just a few times per week can significantly reduce your food-related emissions.

Eat More Seasonal and Local Produce

While transportation is a smaller factor than production, choosing seasonal produce avoids the emissions from heated greenhouses and air-freighted goods. The Seasonal Food Guide can help you find what is in season in your area.

Minimize Food Waste

Roughly one-third of all food produced globally is wasted. When food ends up in landfills, it produces methane as it decomposes. Planning meals, using leftovers, and composting can dramatically reduce this impact.

Track Your Food Emissions

Climate Tally's calculator includes a dedicated food category that helps you understand the carbon impact of your dietary choices. By entering your eating habits, you get a clear picture of your food-related emissions and can track improvements over time.