The Hidden Environmental Costs of Food
As pricey as a run to the grocery store has become, our grocery bills would be considerably more expensive if environmental costs were included, researchers say. The loss of species as cropland takes over habitat. Groundwater depletion. Greenhouse gases from manure and farm equipment.
For years, economists have been developing a system of “true cost accounting” based on a growing body of evidence about the environmental damage caused by different types of agriculture. Now, emerging research aims to translate this damage to the planet into dollar figures.
Beef has the highest environmental costs of the foods we examined, pound for pound, and it wasn’t close. Cattle are very inefficient at converting what they eat into body weight. For every 100 grams of protein a cow eats, less than 4 grams end up in the beef we eat.