Moos in the loo! Cows potty-trained in bid to tackle climate change

Cows were potty-trained in a bid to reduce ammonia emissions caused by waste (Leibnitz-Institut fur Nutztierbiologie Dummerstorf/PA)

Researchers have potty-trained cows in a bid to reduce ammonia emissions caused by their waste.

On a farm where cows freely relieve themselves as they graze, the accumulation and spread of waste can contaminate soil and waterways.