If you care at all about the environment, your health, animals, the hungry or the future, you should go vegetarian or vegan. And the waste that these animals produce pollutes the water and air. Eating fish and sea animals also is damaging to the earth's aquatic ecosystem, polluting the seas and causing the extinction of species. The growing of feed for animal agriculture in the United States has lead to environmental damage, such as topsoil erosion, global warming, toxic waste and health problems. Millions of animals are killed and tortured every day because humans want to consume meat, dairy and eggs.
Humans have no right to kill other beings.
Animals have feelings and a nervous system just as humans do. Factory farms are warehouses where animals are crowded into small cages or stalls until it is time to kill them for their meat. But before animals are killed, they are tortured. Birds are stuffed into cages. Hens are forced to produce eggs.