The number of intensive dairy farms in the UK where cows are kept indoors year-round has more than doubled over the past decade, amid growing financial pressure on farmers and rising concerns over animal welfare and pollution.

Campaigners warn indoor dairy mega farms risk worsening pollution and animal welfare, as farmers squeezed by rising costs turn to intensive systems

The number of intensive dairy farms in the UK where cows are kept indoors year-round has more than doubled over the past decade, amid growing financial pressure on farmers and…