Looking at the composition of the meal by weight, steak accounts for less than half of the total weight. However, when it comes to total carbon emissions from the meal, the steak contributesto almost all of the emissions. What’s for Dinner? Breaking down a meal of steak, broccoli, and potatoes Potatoes Broccoli Steak Steak Dinner Ingredient Composition Weight Carbon Emissions 34.5% .25% 99.4% 43.5% 22% .35% Weight Carbon Emissions