Topic summary
Dairy production

Extracted from the Wikipedia article Dairy.
Climate change and dairy production
In 2009, there were 1.2 billion cattle in the world, with around 82% in the developing countries. The number has increased since then, with the 2021 figure at 1.53 billion. In 2020, it was found that in a current Eastern climate, cattle experience mild heat stress inside unadapted stalls for nearly half a year (159 days). Moderate heat stress is felt indoors and outdoors during May, June, July, August, September, and October. June and August are the months where cattle are exposed to severe heat stress outside, which is mitigated to moderate heat stress indoors.