Tobacco

• 1. Introduction

  ›

  Tobacco kills more than 8 million people every year, according to the World Health Organization. About 1.3 million of those deaths happen to people who never smoked a cigarette in their lives. And yet an estimated 1.1 billion people still use tobacco in some form. How did one plant, in the genus Nicotiana, come to be woven so deeply into human civilization that it saved a colonial economy, inspired the first genetically modified crop, and became the world's single greatest preventable cause of death? That question takes us from ceremonial fires in the Americas to the laboratories of the 20th century, from children working in Malawian fields to the state-owned smokestacks of Yunnan province.

• 2. Roots in the Americas

  ›

  Haudenosaunee mythology holds that tobacco first grew from the head of Earth Woman after she died giving birth to her twin sons, Sapling and Flint. That origin story anchors something genuine: cultivation sites in Mexico place human use of the plant at 1400-1000 BCE. For many Native peoples, tobacco was not a vice but a sacred medium. People from the Northeast Woodlands cultures carried it in pouches as a widely accepted trade item, offered it to seal peace treaties, and understood the smoke rising from a ceremony as carrying prayers to the Creator.

  Some Native American communities today advocate for respectful, non-commercial use of tobacco precisely because that older relationship existed long before the colonial trade. Francisco Hernández de Toledo brought the first tobacco seeds to Europe in 1559, acting on orders from King Philip II of Spain. He planted them in the outskirts of Toledo, in a place that came to be called "Los Cigarrales" after the plagues of cicadas, cigarras in Spanish, that frequented the area.

  The astronomer Thomas Harriot, who accompanied Sir Richard Grenville on the 1585 expedition to Roanoke Island, was among the early European voices praising the plant. He believed it opened all the pores and passages of the body and kept the native population free from the diseases that plagued England. That reputation for health benefits helped propel tobacco into every corner of European commerce. By 1700, producing tobacco for smoking, chewing, and snuffing had become a major industry across Europe and its colonies.

• 3. The Word and the Plant

  ›

  The English word tobacco traces back to the Spanish tabaco, and before that to Taíno, the Arawakan language spoken across the Caribbean. Two competing meanings circulated in early accounts: Bartolomé de las Casas, writing in 1552, understood the word to mean a roll of tobacco leaves; another account attributed the term to the Y-shaped pipe used for sniffing the smoke, a device called a tabago, while the leaves themselves were called cohiba.

  A separate thread runs through the Mediterranean. Words similar to tabaco appeared in Spanish, Portuguese, and Italian as early as 1410, describing certain medicinal herbs. Those likely derived from the Arabic word ṭubbāq, which reportedly dated to the ninth century and referred to various herbs. Whether the two linguistic streams ever truly converged remains genuinely disputed.

  The plant itself belongs to the nightshade family, Solanaceae, indigenous to the Americas, Australia, southwest Africa, and the South Pacific. Seventy-nine species are known, but the chief commercial crop is Nicotiana tabacum. The more potent variant, Nicotiana rustica, is still used in some countries. Unlike many other nightshades, tobacco plants do not contain tropane alkaloids, the compounds often poisonous to humans. What they do contain is a much higher concentration of nicotine than any related plant, a fact that has shaped nearly everything else about tobacco's story.

• 4. Cash Crop and Its Costs

  ›

  James Bonsack's invention of a machine to automate cigarette production in the late 19th century transformed a cottage trade into an industrial juggernaut. Before that machine arrived, cigarette volumes were limited by the pace of human hands. After it, production scaled so rapidly that the tobacco industry expanded almost without limit until the health revelations of the 20th century began to arrive.

  The English colony of Jamestown had already demonstrated decades earlier how completely a tobacco crop could define a society. The colony used tobacco as currency and built its survival around exporting it. That expansion, however, was inseparable from the history of slavery in the Caribbean. The labor that made tobacco profitable was coerced labor.

  The economic logic persisted into the modern era. Between 1985 and 2000, the World Bank found that the inflation-adjusted price of tobacco dropped 37%. That collapse was devastating to small-scale farmers, even as companies like Philip Morris, British American Tobacco, and Japan Tobacco each owned or leased manufacturing facilities in at least 50 countries. In 1998, the 1,429 state-owned enterprises in China's Yunnan province generated revenue of roughly RMB 69.1 billion; eight cigarette manufacturing plants alone accounted for about 53% of that total. By 2013-2014, global tobacco tax revenues reached approximately $269 billion.

• 5. Inside the Leaf

  ›

  Curing is where raw tobacco leaf becomes a smokable product, and the method chosen changes nearly everything about what the smoke contains. Air-cured tobacco hangs in ventilated barns for four to eight weeks, producing low sugar and high nicotine. Fire-cured tobacco is hung above smoldering hardwood fires for anywhere from three days to ten weeks, which also keeps sugar low and nicotine high. Flue-cured tobacco, the basis for most cigarettes, is dried by heat from external fire boxes without direct smoke contact; that process produces high sugar and medium-to-high nicotine, and a milder, more inhalable smoke. Estimations suggest that curing one tree's worth of wood is required for every 300 cigarettes produced via the flue method, with serious environmental consequences.

  During the curing and aging process, carotenoids in the leaf oxidize and degrade slowly. Starch converts to sugar, which then glycates protein; that protein oxidizes into advanced glycation endproducts, a caramelization process that adds flavor. Those same compounds, when inhaled in tobacco smoke, contribute to atherosclerosis and cancer.

  In the 1970s, Brown and Williamson crossbred tobacco to produce a strain called Y1, which contained an unusually high nicotine content, nearly doubling the concentration from 3.2-3.5% to 6.5%. In the 1990s, that discovery prompted the Food and Drug Administration to allege that tobacco companies were deliberately manipulating the nicotine content of cigarettes.

• 6. Health and Addiction

  ›

  Nicotine scores almost as highly as opioids on drug-effect preference questionnaires, a rough measure of addictive potential. Users typically develop both tolerance and dependence. One medical study placed tobacco's overall harm to users and to others at three percentage points below cocaine and 13 percentage points above amphetamines, ranking it sixth most harmful among 20 drugs assessed.

  The health toll extends well beyond nicotine. Thousands of substances in cigarette smoke, including polycyclic aromatic hydrocarbons, formaldehyde, cadmium, nickel, arsenic, and tobacco-specific nitrosamines, drive disease across multiple organ systems. The WHO estimated that tobacco caused 100 million deaths over the course of the 20th century. In the United States, about 3,000 adults die each year from lung cancer caused by secondhand smoke. Heart disease from secondhand smoke kills roughly 46,000 nonsmokers every year in the US alone.

  Children face compounding risks. Every year in the United States, secondhand smoke exposure causes an estimated 24,500 infants to be born with low birth weight and 71,900 preterm births. Children working on tobacco farms face a separate danger: when wet tobacco leaves are handled, nicotine absorbs through the skin and causes nausea, vomiting, and dizziness. Plan International reported in late 2009 that children on tobacco farms in Malawi were exposed to nicotine levels equivalent to smoking 50 cigarettes a day through direct skin contact alone.

  Radioactive contamination adds another layer. As tobacco plants grow, radon decay products from radium in fertilizer, including polonium-210 and lead-210, cling to the sticky hairs on the bottom of the leaves. A UCLA study estimated that the radiation accumulated from 25 years of smoking would cause more than 120 deaths per thousand smokers.

• 7. Science and Governance

  ›

  Tobacco has played a pioneering role in plant science that most people never associate with the crop. Tobacco BY-2 cells, derived from the Nicotiana tabacum cultivar known as Bright Yellow-2, are among the most important research tools in plant cytology. The first genetically modified plant was produced in 1982, when researchers used Agrobacterium tumefaciens to create an antibiotic-resistant tobacco plant. That work laid the groundwork for all genetically modified crops that followed.

  In 1986, transgenic tobacco became the first GM crop tested in open field trials, in both the United States and France. China became the first country in the world to approve commercial planting of a GM crop in 1993, and that crop was tobacco. From 2002 to 2010, cigarettes made with GM tobacco engineered to reduce nicotine content were sold in the US under the market name Quest.

  On the regulatory side, the 1998 Tobacco Master Settlement Agreement in the United States resolved lawsuits brought by state governments in exchange for yearly payments to the states and voluntary restrictions on advertising. In 2003, the World Health Organization successfully brought 168 countries together to sign the Framework Convention on Tobacco Control, designed to push effective legislation and enforcement across all signatory nations. Between 2019 and 2021, concerns that tobacco use worsened COVID-19 outcomes accelerated both smoking reduction and cessation efforts globally.