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

The main reason why raising cattle contributes to global warming is due to their production of methane, a potent greenhouse gas. Cows and other ruminant animals have a digestive system that produces methane during the process of enteric fermentation. Methane is released through their burps and flatulence. Methane is around 28 times more effective at trapping heat in the atmosphere than carbon dioxide over a 100-year period.

Additionally, growing feed crops for cattle also contributes to global warming. Large areas of land are used for growing crops like soybeans and corn, which require deforestation and intensive use of fertilizers and pesticides. These agricultural practices release greenhouse gases like carbon dioxide and nitrous oxide, further contributing to global warming.

Furthermore, the cattle industry's reliance on fossil fuels for transportation, water, and electricity also adds to their overall carbon footprint, as it contributes to the emission of greenhouse gases.

In summary, the factors mentioned above, primarily methane emissions from enteric fermentation, land-use change, and reliance on fossil fuels, are the main reasons why raising cattle contributes to global warming.