Why does the production of milk cow cause more waste than it did 200 years sgo.?

The production of milk cows today generates more waste than it did 200 years ago primarily due to intensified farming practices and larger herd sizes. Modern dairy operations often prioritize high milk yields, resulting in concentrated animal feeding operations (CAFOs) that produce significant amounts of manure and other waste products. Additionally, advancements in technology and feed have increased the number of cows per farm, exacerbating waste management challenges. Environmental regulations and consumer expectations have also evolved, necessitating more attention to waste disposal and management than in the past.