Making dairy more environmentally friendly

it is possible to keep water within the dairy system and prevent these harmful impacts as well as saving resources, but first, you must identify where the water is used.

Effluent is the wastewater that comes out of a treatment plant, factory or industry and is often discharged into a river or the sea, also causing severe environmental consequences, such as vast dead zones in the oceans.

https://horizon-magazine.eu/article/green-milk-making-dairy-more-environmentally-friendly_en.html