Life here on Earth is fragile. Very fragile, actually. Earth is very small. It’s the third planet in our solar system, the fourth smallest planet of the nine planets. Its 12,756 km in diameter, which is really tiny when you compare it to Jupiter the largest planet, which is just shy of 142,984 km in diameter, and a mere mote in the eye of our comparatively small sun which is 1.4 million km in diameter. Earth, revolving round the sun at 107,000 km/hr, is so small you could fit a million Earths inside the sun. Our Sun is but one star of 400 billion stars in our galaxy. Our Galaxy is about one of about 100 billion galaxies that are known of. So we are tiny. So we come to one of the great pollutants and destroyers of species.
In a Time Magazine article dealing with livestock production Brian Walsh, drawing material from a paper brought out by the Academy of Sciences of the USA says the following:
“40% of global agricultural gross domestic product, provides income for more than 1.3 billion people and uses one-third of the world’s fresh water. There may be no other single human activity that has a bigger impact on the planet than the raising of livestock.”
Combine Animal Feeding operations produce enormous amount of methane, and aside from the horrific cruel and unconscionable conditions which the animals are subjected to, the stress of confinement, the sicknesses, the feeding with antibiotics, the soya beans and GMO corn they are fed, animal agriculture is responsible for 18 % of all greenhouse gas emissions, including 37 % of methane emissions and 65 % of NO2 emissions. The methane releases from billions of imprisoned animals on factory farms are 70 times more damaging per ton to the earth’s atmosphere than CO2. Don’t forget that much of this livestock production is heavily subsidized by governments, so that the real costs of production are not passed onto the consumer.
As livestock farming is such a huge source of income for billions of people (global value in 2013 $883 billion ), as the production of meat and poultry and fish for supermarkets great and small all over the planet is such a lucrative undertaking, as so much research is produced each year about economizing and increasing productivity and efficiency in the livestock industry, as so many with the exception of the vegetarian and animal rights community point out the cruelty inherent in the beef and livestock industry, there is a strong and unfounded impetus to keep underlining the health benefits of eating meat, and to divorce the eating of meat from the enormous suffering and horrific cruelty endured by billions of animals world-wide every day, and every moment of every day. All animals have consciousness, language and a type of culture, by this I mean a socially approved and communally understood sense of expression. One other thing worth considering is this.
What kind of body do humans have? Are we built for eating animals? Are we omnivores? Well, not really. Dr. Williams C. Roberts from the USA National Institutes of Health and Baylor University — who is the editor-in-chief of the American Journal of Cardiology and one of the most prominent cardiologists in the world with over 1,500 publications in peer reviewed medical journals — summarized our answer very nicely. He wrote:
“Although most of us (humans) conduct our lives as omnivores, in that we eat flesh as well as vegetables and fruits, human beings have characteristics of herbivores, not carnivores. The appendages of carnivores are claws; those of herbivores are hands or hooves. The teeth of carnivores are sharp; those of herbivores are mainly flat (for grinding). The intestinal tract of carnivores is short (3 times body length); that of herbivores, long (12 times body length). Body cooling of carnivores is done by panting; herbivores, by sweating. Carnivores drink fluids by lapping; herbivores, by sipping. Carnivores produce their own vitamin C, whereas herbivores obtain it from their diet. Thus, humans have characteristics of herbivores, not carnivores.”
So it seems that not only is the human race investing vast resources in livestock farming, and though we have spent thousands of years eating meat, our bodies aren’t even designed to eat meat in the first place. It’s also interesting to note that our bodies synthesize all the cholesterol we need, but that when we take in animal products, we begin to build up cholesterol, and run intro real dangers of developing atherosclerosis, and heart disease. Food for thought, eh?
 WC Roberts. Twenty Questions on Atherosclerosis. Proc (Bayl Univ Med Cent). 2000 Apr.; 13(2): 139–143.