Livestock emit large quantities of methane as part of their natural digestive processes. Livestock is a significant source of methane, a potent greenhouse gas, in agriculture. Carbon dioxide is much more abundant than methane in the atmosphere. Methane, on the other hand, traps 30 times more heat than carbon dioxide. Methane (CH4) is the main component of natural gas and a powerful greenhouse gas (GHG). After escaping into the atmosphere, greenhouse gases act as a shield, insulating the Earth and trapping energy while slowing the rate at which heat leaves the planet. The greenhouse effect has become stronger and more constant over the last few decades as greenhouse gas emissions have increased. It is leading to global warming, which is a concerning situation. As a result, methane production and emissions from the fermentation of feed and fodders in the ruminant digestive tract must be reduced. This analysis discusses nutritional manipulation in ruminants as the best method for reducing methane production and emissions.