In California, Texas and Iowa, cancer rates are 4-8% higher in areas with more industrial animal agriculture. Factory farms produce massive amounts of manure. Iowa’s hogs alone produce an estimated 110 billion pounds of manure each year

In California, Texas and Iowa, cancer rates are 4-8% higher in areas with more industrial animal agriculture. Factory farms produce massive amounts of manure. Iowa’s hogs alone produce an estimated 110 billion pounds of manure each year