Free to follow every thread. No paywall, no dead ends.
Pollution: the story on HearLore | HearLore
Pollution
In 2019, pollution killed approximately nine million people worldwide, a figure representing one in six deaths that year and triple the number of deaths caused by AIDS, tuberculosis, and malaria combined. This staggering mortality rate emerged from a silent crisis that had been building for centuries, transforming from a localized nuisance into a global existential threat. The term pollution, in its modern environmental sense, was rare before the 1860s, when the word primarily referred to the desecration of something sacred rather than the physical introduction of contaminants. By the late 19th century, however, the industrial revolution had birthed a new reality where the smoke nuisance, smoke problem, and smoke evil became the defining characteristics of urban life. The Great Stink of 1858 in London, where the River Thames became so foul that it halted parliamentary proceedings, marked a turning point in human awareness, forcing societies to confront the tangible consequences of unchecked industrialization. The transition from prehistoric soot on cave ceilings to the complex web of chemical, thermal, and radioactive contaminants of the 21st century illustrates a trajectory of escalating environmental impact that now threatens the stability of Earth's support systems.
The Smoke Plague
The history of air pollution is written in the soot of prehistoric fires and the coal smoke of Victorian cities, evolving into a complex atmospheric crisis that defies national borders. In 1306, King Edward I of England banned the burning of mineral coal, known as seacoal, after its smoke became a public health crisis, yet the practice continued to escalate with the Industrial Revolution. By 1870, Berlin's sanitary conditions were among the worst in Europe, prompting the Imperial German government to import scientists and engineers to forge the city into a model of civic administration. The Great Smog of 1952 in London killed at least 4,000 people, a tragedy that prompted the first major modern environmental legislation, the Clean Air Act of 1956. In the United States, the mid-1950s to early 1970s saw a surge of public attention, leading to the passage of the Noise Control Act, the Clean Air Act, and the Clean Water Act. The legacy of these events persists today, with China and the United States remaining the world leaders in air pollution emissions, while India and other developing nations face the dual burden of rapid industrialization and inadequate regulation. The particulate matter known as PM2.5, with its micrometre size, continues to cause respiratory and cardiovascular diseases, claiming millions of lives annually and costing nations billions in economic damages.
How many people did pollution kill worldwide in 2019?
Pollution killed approximately nine million people worldwide in 2019, representing one in six deaths that year. This figure tripled the number of deaths caused by AIDS, tuberculosis, and malaria combined.
When was the term pollution first used in its modern environmental sense?
The term pollution in its modern environmental sense was rare before the 1860s when it primarily referred to the desecration of something sacred. By the late 19th century the industrial revolution had transformed the word to describe the physical introduction of contaminants.
What event marked a turning point in human awareness of pollution in London?
The Great Stink of 1858 in London marked a turning point when the River Thames became so foul that it halted parliamentary proceedings. This event forced societies to confront the tangible consequences of unchecked industrialization.
Which substances were identified as transgressing a planetary boundary in August 2022?
Scientists concluded in August 2022 that the boundary for per- and polyfluoroalkyl substances had been transgressed. These informally referred to as forever chemicals include chlorinated hydrocarbons, heavy metals like lead and cadmium, and dioxins.
How many people fell ill with waterborne illnesses in India in 2013?
Over 10 million people in India fell ill with waterborne illnesses in 2013 and 1,535 people died. Most of the victims were children highlighting the disproportionate impact on vulnerable populations.
When was the Global Framework on Chemicals agreed upon and where did the conference take place?
A Global Framework on Chemicals aiming to reduce pollution was agreed upon in September 2023 during an international conference in Bonn, Germany. The agreement includes 28 targets to end the use of hazardous pesticides in agriculture where the risks have not been managed by 2035.
In August 2022, scientists concluded that the boundary for per- and polyfluoroalkyl substances, informally referred to as forever chemicals, had been transgressed, marking a new planetary boundary for anthropogenic chemical pollution. These substances, which include chlorinated hydrocarbons, heavy metals like lead and cadmium, and dioxins, have become ubiquitous in the environment, persisting for hundreds or even thousands of years without biodegrading. The story of these chemicals is one of unintended consequences, from the recycling of industrial leftovers into fertilizer that resulted in metal poisoning of the soil, to the widespread use of plastics that now choke the oceans. The Great Pacific Garbage Patch, a concentration of plastics in the North Pacific Gyre, serves as a stark symbol of this crisis, containing debris that can transport invasive species and entangle wildlife. The accumulation of these substances has led to biomagnification, where toxins pass through trophic levels and become exponentially more concentrated, threatening entire ecosystems. The case of Lake Karachay, named by the Worldwatch Institute as the most polluted spot on earth, and Chelyabinsk, Russia, considered the most polluted place on the planet, highlight the lethal potential of radioactive and chemical contamination that can remain dangerous for hundreds of thousands of years.
The Silent Victims
Children and the elderly bear the heaviest burden of pollution, with mercury linked to developmental deficits and lead causing neurological problems and intellectual disabilities. In 2013, over 10 million people in India fell ill with waterborne illnesses, and 1,535 people died, most of them children, highlighting the disproportionate impact on vulnerable populations. The case of Love Canal, where long-term dioxin contamination starting in 1947 led to the Superfund legislation of 1980, and the Valley of the Drums, an uncontrolled dumping site, illustrate the human cost of industrial negligence. The environmental justice movement emerged as a core response to these disparities, as polluting industries and toxic waste sites tend to be collocated with populations with less economic and political power. This outsized impact continues to be a core element of environmental conflicts, particularly in the Global South, where marginalized communities face the brunt of pollution's health and social consequences. The 2017 study by the Lancet Commission on Pollution and Health found that global pollution kills nine million people annually, a figure that underscores the urgent need for policy intervention and social change.
The Economic Cost
The economic cost of pollution is staggering, with air pollution alone causing approximately 3.61 million deaths annually and costing the United States between $537 billion and $678 billion in health and illness-related expenses. In 2005, pollution abatement capital expenditures and operating costs in the US amounted to nearly $27 billion, reflecting the financial burden of mitigating environmental damage. The concept of negative externalities in production explains why firms often choose to produce more of a product than would be produced if they were required to pay all associated environmental costs. The free market equilibrium fails to account for the social costs of pollution, leading to overproduction and underpricing of goods that generate environmental harm. The case of the Pure Earth, an international non-for-profit organization dedicated to eliminating life-threatening pollution in the developing world, highlights the need for global cooperation and policy intervention. The 2021 study found that exposure to pollution causes an increase in violent crime, while a 2019 paper linked pollution to adverse school outcomes for children, demonstrating the far-reaching social and economic impacts of environmental degradation.
The Global Response
In September 2023, a Global Framework on Chemicals aiming to reduce pollution was agreed during an international conference in Bonn, Germany, including 28 targets to end the use of hazardous pesticides in agriculture where the risks have not been managed by 2035. The United Nations Environmental Program and other treaty bodies coordinate international efforts to regulate pollutants, resulting in increasing air and water quality standards alongside the regulation of specific waste streams. The development of nuclear science introduced radioactive contamination, which can remain lethally radioactive for hundreds of thousands of years, prompting worldwide support for test ban treaties that have ended almost all nuclear testing in the atmosphere. The borderless nature of the atmosphere and oceans has inevitably resulted in the implication of pollution on a planetary level, with the issue of global warming becoming a central focus of international policy. The Great Pacific Garbage Patch and other garbage patches contain debris that can transport invasive species and entangle wildlife, prompting organizations such as 5 Gyres and the Algalita Marine Research Foundation to research and address the crisis. The emergence of environmentalism and the environmental movement, which generally seek to limit human impact on the environment, reflects a growing global awareness of the need for sustainable development and policy intervention.