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The biggest environmental pollution in the world is caused by various factors related to human activities, industry, and overconsumption of natural resources. The main causes include:

1. Emissions and Air Pollution:

• Transportation (cars, airplanes, and ships) produces a significant amount of carbon dioxide (CO2) and other pollutants such as nitrogen oxides and soot. These gases contribute to global warming and deteriorate air quality, leading to respiratory diseases.
• Industrial production also releases a large number of pollutants such as CO2, methane, and various toxic gases. For example, carbon dioxide and methane are primary greenhouse gases contributing to climate change.
• Fossil fuels such as coal, oil, and natural gas, used in power plants and factories, also contribute to air pollution.

2. Water Pollution:

• Wastewater (from industry, agriculture, and households) that is inadequately treated can significantly contaminate rivers, lakes, and oceans. This leads to the spread of diseases and also harms aquatic ecosystems.
• Pesticides and chemicals from agriculture enter waterways, contaminating both water and soil. These chemicals can be toxic to wildlife and humans who depend on these water resources.

3. Waste Disposal:

• Plastic waste, which does not break down easily, is a major environmental issue. The accumulation of plastic, particularly in the oceans, leads to the degradation of ecosystems and threatens species.
• Unregulated disposal of solid waste in many countries also contributes to land and water pollution.

4. Deforestation:

• Deforestation and the destruction of forest ecosystems, often caused by logging, agriculture, and urbanization, leads to biodiversity loss and increased carbon dioxide concentrations in the atmosphere.

5. Agricultural Production:

• Factory farming leads to large emissions of methane, a gas that is much more harmful than CO2 in terms of global warming.
• Intensive farming uses large amounts of chemicals (pesticides, herbicides, chemical fertilizers), which pollute the soil and water.

Countries with the Worst Pollution:

Countries with the highest levels of pollution and the greatest impact on the global environment include:

The biggest environmental pollution in the world results from industrial activity, transportation, agriculture, and the use of fossil fuels. Countries such as China, the USA, India, Russia, and Brazil are among the largest polluters, but pollution problems also affect many other developing countries.

Urbanization coupled with industrialization is the main cause of environmental pollution in many parts of the world. But, this is more prevalent in cities and urban centers found in the global south like Africa, South America and Asia.

The most significant cause of environmental pollution in the world is the burning of fossil fuels, especially for:

Countries Where Pollution is Most Common:1 china 2-USA but Per capita emissions is USA