Why does the production of milk cause more waste now then did 200 years ago?

The production of milk today generates more waste than it did 200 years ago due to the scale and intensity of modern industrial farming practices. Advances in dairy technology, while increasing efficiency, have also led to higher levels of manure, wastewater, and packaging waste. Additionally, the mass production and distribution systems contribute to food waste, as surplus milk and dairy products often go unsold or unused. Furthermore, environmental regulations and consumer demand for convenience have increased the complexity of waste management in the dairy industry.