Billions and billions of animals would be spared from pain and suffering, for starters. More than 40 billion cows, chickens, pigs, and other animals are killed for their flesh each year in the United States alone. An end to factory farms and slaughterhouses would mean an end to painful debeaking, branding and castration practices. Chickens would no longer be scalded alive in defeathering tanks or cows dismembered while they’re still conscious.

We would never have to see another disturbing video showing slaughterhouse workers stomping on chickens and slamming them against walls; dragging injured pigs around by their snouts, legs or ears; or pushing downed cows onto the kill floor with a forklift. Meat recalls would be a thing of the past.

We would have a greener planet and an end to the global food crisis. Greenhouse gasses would be dramatically reduced and animal waste would not taint our waterways. And it may eventually be possible to grow millions of pounds of protein from a single cell, a monumental improvement from the inefficiencies of animal agriculture. As things stand now, it takes up to 16 pounds of grain to produce just 1 pound of meat. A staggering 760 million tons of grain will be used to feed farmed animals this year—compared to 100 million tons used to produce fuel. Around 1.4 billion people could be fed with the grain and soybeans fed to U.S. cattle alone.

And humans would be healthier. Not just because in-vitro meat will not contain antibiotics, listeria and salmonella or because mad-cow disease and other animal-borne illnesses will become a thing of the past, but also because no one will have to live downwind of a stinky, pollution-spewing animal factory. A Scripps Howard synopsis of a Senate Agricultural Committee report on farm pollution warned, “Catastrophic cases of pollution, sickness, and death are occurring in areas where livestock operations are concentrated. … Every place where the animal factories have located, neighbors have complained of falling sick.”

When in-vitro meat is commercially available, our oil problems will be significantly reduced. More than one-third of all fossil fuels produced in the U.S. are used to raise animals for food. Each stage of meat production requires massive amounts of energy—and costs massive amounts of money.

Laboratory-grown meat will have a major impact on many facets on life, from ethical to ecological to economical. While mass quantities of in-vitro meat may not be feasible for a few years, tasty mock meats and other vegetarian alternatives can be found in supermarkets today. Until forward-thinking scientists can produce “meat” without the moo, why not choose vegan foods that have been benefiting animals, people and the environment for years?

Vegans (pronounced VEE-guns) are people who choose not to eat any animal products, including meat, eggs, dairy, honey, and gelatin. Vegans do not wear fur, leather, wool, down, or silk, or use cosmetics or household products that were tested on animals or contain ingredients that were derived from animals. Most vegans also do not support industries that feature captive and/or performing animals, including circuses, zoos, and aquariums.

The American Vegan Society defines veganism as “an advanced way of living in accordance with Reverence for Life, recognizing the rights of all living creatures, and extending to them the compassion, kindness, and justice exemplified in the Golden Rule.”

The word “vegan” was derived from “vegetarian” in 1944 by Elsie Shrigley and Donald Watson, the founders of the UK Vegan Society. Shirgley and Watson were disillusioned that vegetarianism included dairy products and eggs. They saw “vegan” as “the beginning and end of vegetarian,” and used the first three and last two letters of vegetarian to coin the new term.

There is no conclusive estimate of the current number of vegans in the United States. An American Dietetic Association (ADA) report indicated that, in 2000, approximately 2.5% of the U.S. adult population (4.8 million people) consistently followed a vegetarian diet, meaning they never ate meat, fish, or poultry. Slightly less than 1% of those surveyed were considered vegans.

A poll published in Time magazine on July 7, 2002 showed that 4% of the 10,007 American adults surveyed consider themselves vegetarians, and 5% of those who descibed themselves as vegetarians also considered themselves vegans.

Retail sales of vegetarian and vegan food have more than doubled in the U.S. since the late 1990’s. In 1998, the total sale of vegetarian and vegan foods was 729.6 million dollars. In 2003, that amount increased to 1,558.9 million dollars. A 2005 Mintel survey indicated that U.S. sales of vegetarian food increased by 64 percent from 2000 to 2005 and predicted that the vegetarian food market will continue to grow in the next few years.

Many schools and universities now offer vegan options. A 2005 nationwide survey conducted by ARAMARK, a company that provides food to universities and school districts, indicated that approximately twenty-four percent of college students say vegan meals are important to them.

Although most people go vegan for ethical reasons, health and environmental concerns are also motivating factors.

Ethical Reasons for Veganism

Approximately 27 billion cows, pigs, chickens, turkeys, fish, and other animals are killed for food each year in the United States. Our modern factory farming system strives to produce the most meat, milk, and eggs as quickly and cheaply as possible, and in the smallest amount of space possible.

Cows

Cattle raised for beef are fed high-bulk grains and other “fillers,” which can include expired dog and cat food, poultry feces, and leftover restaurant food. They are branded, castrated, and dehorned—all without pain killers. They are crowded into metal trucks and taken to slaughter; they are generally not provided with sufficient food, water, and veterinary care. Many are trampled during the long journey. At the slaughterhouse, cattle may be hoisted upside down by their hind legs and dismembered while they’re still conscious.

“Dairy” cows are typically kept in feces- and urine-saturated “dry lots” of dirt and mud. They are impregnated every year in order to keep up a steady supply of milk. Male calves are taken away within a day or two of birth and sold to veal farms where they are chained in stalls only 2 feet wide and 6 feet long with slatted floors. Their mothers’ milk is used for human consumption, so the calves are fed a milk substitute designed to help them gain at least 2 pounds a day. The diet is purposely low in iron so that the calves become anemic and their flesh stays pale and tender. They are normally killed when they are between 16 and 18 weeks old. Female calves are raised to be milk producers like their mothers.

Chickens

Nearly 9 billion chickens are raised for meat each year. They are crammed by the tens of thousands into filthy warehouses with no access to fresh air or sunlight. They typically do not have enough space to stretch even one wing. Undercover investigations into the “broiler” chicken industry have repeatedly revealed birds who were suffering from dehydration, respiratory diseases, bacterial infections, heart attacks, crippled legs, and other serious ailments.

Birds are not protected under the Humane Methods of Slaughter Act, the only federal law that offers any sort of protection to farmed animals. At the slaughterhouse, they are hung upside-down, their legs are snapped into metal shackles, their throats are slit open, and they are immersed in scalding hot water for feather removal. They are often conscious through the entire process.

Ninety-eight percent of the egg industry’s hens are confined in wire mesh battery cages stacked tier upon tier in huge warehouses. They are generally confined seven or eight to a cage, and don’t have enough room to turn around or spread one wing. Conveyor belts bring in food and water and carry away eggs and excrement. To prevent stress-induced behaviors caused by overcrowding, such as pecking their cagemates to death, hens are kept in semi-darkness, and the ends of their beaks are cut off with hot blades (without anesthetics).

Although chickens can live for more than a decade in natural surroundings, laying hens are usually “spent,” exhausted and unable to produce as many eggs by the time they are 2 years old. More than 100 million “spent” hens die in U.S. slaughterhouses every year.

Pigs

Mother pigs live most of their lives in individual crates 7 feet long by 2 feet wide. Their piglets are taken away three weeks after birth and packed into pens to be raised for breeding or for meat. Many display neurotic behaviors such as cannibalism and tailbiting, so farmers use pliers to break off the ends of the piglets’ teeth and chop off their tails—with no anesthetics.

According to the pork industry, more than 100,000 pigs die en route to slaughter each year, and more than 400,000 arrive crippled from the journey. They often freeze to the sides of the transport trucks in top pig-slaughtering states like Iowa and Nebraska or die from dehydration in states like North Carolina.

At the slaughterhouse, pigs are frequently stunned improperly and are still conscious when they reach the scalding water intended to soften their skin and remove the hair. United States Department of Agriculture inspection records documented 14 humane slaughter violations at one processing plant, including finding hogs that “were walking and squealing after being stunned [with a stun gun] as many as four times.”

Health Reasons for Veganism

Animal products are generally high in saturated fat, cholesterol, and concentrated protein. Numerous studies have linked the consumption of certain animal products to serious illnesses, such as heart disease, strokes, diabetes and breast, colon, prostate, stomach, esophageal, and pancreatic cancer.

Unlike animal products, plant-based foods are cholesterol free and generally low in fat and high in fiber, complex carbohydrates, and other vital nutrients. Researchers from the University of Toronto have found that a plant-based diet rich in soy and soluble fiber can reduce cholesterol levels by as much as one-third. According to David Jenkins, professor of nutrition and metabolism at the University of Toronto, “the evidence is pretty strong that vegans, who eat no animal products, have the best cardiovascular health profile and the lowest cholesterol levels.”

Studies have shown that, on average, vegetarians and vegans are at least 10 percent leaner, and live six to 10 years longer, than meat-eaters. The ADA has reported that “vegetarians, especially vegans, often have weights that are closer to desirable weights than do non-vegetarians.”

In Dr. Spock’s Baby and Child Care, the late Dr. Benjamin Spock, an authority on child care, wrote, “Children who grow up getting their nutrition from plant foods rather than meats have a tremendous health advantage. They are less likely to develop weight problems, diabetes, high blood pressure, and some forms of cancer.”

According to a joint statement by the ADA and Dietitians of Canada, “well-planned vegan and other types of vegetarian diets are appropriate for all stages of the life cycle, including during pregnancy, lactation, infancy, childhood, and adolescence.”

“Quite simply,” says T. Colin Campbell, Ph.D., the author of The China Study: Startling Implications for Diet, Weight Loss and Long-Term Health, “the more you substitute plant foods for animal foods, the healthier you are likely to be. I now consider veganism to be the ideal diet. A vegan diet—particularly one that is low in fat—will substantially reduce disease risks. Plus, we’ve seen no disadvantages from veganism. In every respect, vegans appear to enjoy equal or better health in comparison to both vegetarians and non-vegetarians.”

Environmental Reasons for Veganism

The process of turning cows, pigs, chickens, and turkeys into “meat,” “pork,” and “poultry” takes a toll on the environment. According to E: The Environmental Magazine, almost every aspect of animal agriculture—from grazing-related loss of cropland and open space, to the inefficiencies of feeding vast quantities of water and grain to cattle in a hungry world, to pollution from factory farms—is an environmental disaster with wide and sometimes catastrophic consequences.

The United Nations report Livestock’s Long Shadow concluded that the livestock sector is “one of the top two or three most significant contributors to the most serious environmental problems, at every scale from local to global.” The report suggested that the livestock industry should be “a major policy focus when dealing with problems of land degradation, climate change and air pollution, water shortage and water pollution, and loss of biodiversity.”

According to the U.N. report, raising animals for food generates more greenhouse-gas emissions than all the cars, trucks, trains, ships, and planes in the world combined.

Researchers at the University of Chicago determined that switching to a vegan (pure vegetarian) diet is more effective in countering global warming than switching from a standard American car to a Prius. The researchers compared the amount of fossil fuel needed to cultivate and process various foods, including running machinery, providing food for animals, and irrigating crops. They found that the typical U.S. meat-eater generates nearly 1.5 tons more carbon dioxide per person per year than a vegan does. By comparison, if you traded a gas-guzzling vehicle for a state-of the-art hybrid, the CO2 savings would only be slightly more than 1 ton.

Raising animals for food also requires massive amounts of water and land. It takes 2,500 gallons of water to produce a pound of meat, but only 60 gallons of water to produce a pound of wheat. A meat-based diet requires more than 4,000 gallons of water per day whereas a vegan diet requires only 300 gallons of water a day.

On the subject of water, the Environmental Protection Agency has reported that factory farms pollute our waterways more than all other industrial sources combined. Animals raised for food produce approximately 130 times as much excrement as the entire human population—87,000 pounds per second.

In the U.S., animals are fed more than 70 percent of the corn, wheat, and other grains we grow. The world’s cattle consume a quantity of food approximately equal to the caloric needs of 8.7 billion people. Instead of funneling food through farmed animals, we could feed it directly to hungry, malnourished people.

Go Green: It’s Easier Than You Might Think

If you’re thinking about going vegan—but aren’t sure how to get started, go to GoVeg.com and read the tips on making the transition to a vegan diet. You can also order or download a free “Vegetarian Starter Kit.” With many supermarkets, health food stores, and restaurants offering vegan options, you’ll quickly see how easy it is to be green.

Face it: Meat — cloned or not — is about as “safe” as a troubled celebrity behind the wheel of a car. It’s high in cholesterol, saturated fat and concentrated protein — all of which contribute to heart disease. Research shows that meat-eaters are 50 percent more likely to develop heart disease than vegetarians are. A study published in the American Journal of Clinical Nutrition showed that 26 percent of meat-eaters studied suffered from high blood pressure — the No. 1 risk factor for strokes – compared to only 2 percent of vegetarians. The American Dietetic Association acknowledges that people who eat animal products are more likely to be overweight than people who do not.

In a 2007 joint report, the American Institute for Cancer Research and the World Cancer Research Fund advised people to lose weight and reduce their consumption of red and processed meats to help prevent certain cancers, including colorectal and breast cancers. Scientists with the University of Minnesota, the Harvard School of Public Health and other institutions have cautioned that eating red and processed meats can also cause diabetes. Other meats aren’t any better: According to a 2006 Harvard study, people who frequently eat grilled skinless chicken have a 52 percent higher chance of developing bladder cancer than people who don’t.

Add to this the risk of illness from consuming meat and milk tainted with dangerous bacteria. Just last week, the Rochester Meat Co. in Minnesota recalled 188,000 pounds of ground beef potentially contaminated with E. coli. There’ve been at least eight other E. coli-related meat recalls since October. In September, the Topps Meat Co. in New Jersey recalled more than 21 million pounds of beef after 100 people became sick. Since June, three elderly men have died and one woman has miscarried after drinking listeria-contaminated milk from a Boston-area dairy plant.

Yet instead of at least encouraging people to be wary when eating animal products, the FDA is allowing meat and milk from the offspring of cloned animals to enter the food supply — and consumers are supposed to swallow this? Only in America. The European Group on Ethics in Science and New Technologies says that it doesn’t see convincing arguments to justify the production of food from clones and their offspring.

Nothing can justify this. Not only are meat and milk unhealthy, the process of cloning animals is also unethical. Cloned animals pose a risk to their surrogate mothers because they tend to be too large for their mothers to deliver. Many clones have birth defects, and cloned calves have died of respiratory, digestive, circulatory, nervous, muscular and skeletal abnormalities. But, according to the FDA, if the animals survive more than a few months, they appear normal in most ways. How comforting: If they live long enough, they can be slaughtered in the same terrifying ways that other animals are.

The FDA is moving in the wrong direction. More and more consumers are resolving to make healthy, humane food choices. They’re choosing truly safe “meats” — mock meats — and other vegetarian options. A 2005 Mintel survey indicated that U.S. sales of vegetarian food increased by 64 percent from 2000 to 2005 and predicted that the vegetarian food market will continue to grow in the next few years. This represents progress – engineering animals and marketing unhealthy food does not.

The tobacco industry has funded experimenters who have cut holes in beagles’ throats and made them breathe concentrated cigarette smoke for a year. They’ve inserted electrodes into dogs’ penises to measure the effect of cigarette smoke on their sexual performance. They’ve confined rhesus monkeys to chairs with head devices and exposed them to nicotine and caffeine to determine how these substances affect their breathing. Cigarette smoke has been pumped directly into the noses of rats and mice.

Why? Tobacco companies say that they just want to determine how harmful cigarettes are to human health. But we’ve already determined that smoking can be deadly, and as everything we know about lung cancer and other smoking-related illnesses has come from human epidemiological and clinical studies—not from animal experiments—there must be another reason for the tobacco industry to fund smoking experiments on animals.

This other reason, I believe, is that experiments on animals are misleading. Decades of study have shown that animals do not develop lung cancer as humans do. A 2002 paper in the journal Inhalation Toxicology blasted inhalation experiments on animals for failing to show that smoking cigarettes does increase the cancer risk in humans, noting that “[s]ignificant increases in the numbers of malignant tumors of the respiratory tract were not seen in rats, mice, hamsters, dogs, or nonhuman primates exposed for long periods of time to very high concentrations of mainstream cigarette smoke.”

But the tobacco industry is still desperately grasping for anything that might convince the public that smoking isn’t dangerous. Cigarette manufacturers are perfectly aware that vast differences exist between species and that data taken from one species cannot always be correctly applied to another. Different species of animals vary enormously in their reactions to toxins and diseases, as well as in their metabolism of drugs.

Yet millions of dollars and hundreds of thousands of animal lives have been wasted on experiments that are so inhumane and pointless that they have been illegal in Britain since 1997.

It’s time for the tobacco industry to pull its head out of the clouds of smoke and be honest about the facts: Smoking causes cancer. It is a leading cause of pulmonary illness and death in the United States, including chronic obstructive pulmonary disease, asthma, influenza and pneumonia. Smoking contributes to cardiovascular disease, coronary heart disease and birth defects.

U.S. federal law does not require tobacco products to be tested on animals (American Spirit cigarettes are not). The money wasted on worthless animal experiments would be much better spent on education, health services, and addiction-treatment programs. For more information click here.