A juicy burger is irresistible. But does its environmental toll cross your mind with every bite?
As climate change becomes undeniable, it's crucial to focus on food choices. Agriculture accounts for significant greenhouse gas emissions, including methane and CO2.
The Environmental Working Group (EWG), a respected U.S. nonprofit dedicated to environmental health, released the report "Meat Eater's Guide to Climate Change and Health."
This authoritative guide ranks foods by their CO2-equivalent emissions per kg, spotlighting those with the heaviest climate impact. Reviewing it has inspired many to rethink their plates for a lighter footprint.
Here are the 10 foods producing the most CO2 per kg:
Sunday roast lamb is a beloved tradition.
Yet, 1 kg emits 39.3 kg of CO2—comparable to driving 150 km in a car.
This stems from farm operations, slaughterhouses, and methane from sheep digestion, which significantly contributes to ozone depletion.
Beef's climate cost is substantial, though less than lamb.
Cattle produce potent methane, and rearing them demands vast water and land. Each kg yields over 27 kg of CO2.
Reducing steaks and burgers benefits both the planet and health.
Cow's milk cheeses carry a notable burden: 13.5 kg of CO2 per kg.
Dairy farming mirrors beef's emissions. Multiple liters of milk per kg amplify the impact, worsened by transport.
Ham, sausages, and roasts are staples, but 1 kg of pork releases 12.1 kg of CO2.
Farming accounts for half, with slaughter, transport, and home cooking adding to the total.
Salmon delights at holidays, but farms emit over 11.9 kg of CO2 per kg from feed, energy, and fuel—even for organic varieties.
The report focuses on farmed; wild-caught has separate health and sustainability concerns.
Emissions arise across farming, processing, transport, and cooking: 10.9 kg of CO2 per kg.
Feed production, especially corn, strains water and land resources.
For meat-eaters aiming to cut emissions, chicken is the smartest choice at 6.9 kg of CO2 per kg.
Similar sources as turkey, but lower at every stage. To discover: Adopting a Hen is Doubly Economical!
Convenient canned tuna still costs 6.1 kg of CO2 per kg, from fishing vessel diesel, processing, and shipping.
Eggs offer efficient animal protein at 4.8 kg of CO2 per kg, mainly from hen feed, packaging, and farm energy.
Opt for organic to minimize impact and boost health. To discover: 7 Reasons Why You Should Have Eggs for Breakfast.
Potatoes are ubiquitous, yet top polluting vegetables at 2.9 kg of CO2 per kg, largely from home cooking energy.
Methods vary: baked potatoes emit more than fries due to cooking time differences.
Carbon footprint is one factor—consider nutrition, ethics, and taste too.
Curbs on meat? Boost plant-based proteins for balance.
