What is the main reason why raising cattle contributes to global warming?

Question

Responses:
Cattle store nitrogen, which is released as nitrous oxide as they die.
Cattle release carbon dioxide as they breathe, similar to humans.
Cattle have microbes in their stomach that produce methane during digestion.
Cattle eat grass, which reduces the amount of plants that remove atmospheric carbon dioxide.

Answer 1

All of the responses provided contribute to the main reason why raising cattle contributes to global warming. However, if we were to identify the primary reason, it would be that cattle have microbes in their stomach that produce methane during digestion. Methane is a potent greenhouse gas that has a much higher global warming potential than carbon dioxide.