Raising animals for food requires massive amounts of land, food, energy, and water and causes immense animal suffering. staggering 51 percent or more of global greenhouse-gas emissions are caused by animal agriculture, according to a report published by the Worldwatch Institute. According to the United Nations, a global shift toward a vegan diet is necessary to combat the worst effects of climate change. Animals raised for food in the U.S. produce many times more excrement than does the entire human population of the country.
Using land to grow crops for animals is vastly inefficient. It takes almost 20 times less land to feed someone on a plant-based (vegan) diet than it does to feed a meat-eater since the crops are consumed directly instead of being used to feed animals. While factory farms are ruining our land, commercial fishing methods such as bottom trawling and long-lining often clear the ocean floor of all life and destroy coral reefs.
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