Don't forget about the pesticides, herbicides and fertilizer that is sprayed over crops that gets washed into the water. The Mississippi river and the Gulf of M

Don't forget about the pesticides, herbicides and fertilizer that is sprayed over crops that gets washed into the water. The Mississippi river and the Gulf of Mexico dead zone is an example. Where i live, cow pasture land mostly is untouched. Also, cows have feet and digestive systems so it takes more equipment and diesel for harvesting and processing grains.