How did the success of the cattle and sheep industries negatively affect the environment?

The growth of agriculture is one of the many leaps that man has made through his existence. But with its continuous growth and the demands at high level at all times there is a consequence to the environment. The excessive number of farm animals used for many purposes in society affects the environment because of the excessive production of carbon dioxide gases like methane. These gases get trapped within the Earth's atmosphere causing the Earth's temperature to increase.