Every farmer that I have presented a carbon footprint of their farm to has expressed a desire to reduce it over time. One of the main reasons for this is because a carbon footprint is actually an indicator of broader farm sustainability.
Every individual in society is reliant on agriculture for the food they eat. The choices that we, as consumers, make in what we buy, influences the demand which is created for certain products or brands.
Grass is abundant in the world, and is able to be grown sustainably for milk production. Pasture-fed cows are very efficiently converting a potentially useless form of nutrients into valuable food for people.