As carbon-intensive activities and vehicular emissions rise, so does Pakistan’s position among the world’s most polluted countries. While it is often emphasized that Pakistan contributes less than 1% to global emissions, the domestic consequences of its polluted air are nothing short of catastrophic.

The World Health Organization identifies heart disease as the leading health risk in Pakistan - yet air pollution now causes the highest number of deaths in the country.

And the scale of the crisis is reflected in recent warnings.

In 2024, UNICEF cautioned that over 11 million children under the age of five were at risk due to hazardous air quality, particularly smog. Pollution levels shattered records in Lahore and Multan, exceeding the WHO’s air quality guidelines by more than 100 times.

This alarming situation reflects a broader trend: Pakistan consistently ranks among the world’s most polluted countries, with its major cities Lahore and Karachi listed as the second and fourth most polluted major cities globally, according to the Air Quality Index (AQI).

Though environmental degradation should not be justified in the name of industrial growth, Pakistan has not even achieved meaningful industrialization.

Why, then, has air pollution reached life-threatening levels?

The answer lies in a combination of factors, including emissions from industrial operations (especially coal-fired power plants), vehicles, and the open burning of domestic waste and crop stubble. However, unless Pakistan takes urgent steps to curb rising emissions, the toxic air will continue to fuel respiratory illnesses, shorten lifespans, and make industrial cities increasingly unlivable.

So, what is air pollution?

Contrary to popular belief, it is not limited to smog alone - smog is merely one of its many forms.

According to the WHO, air pollution is the “contamination of the environment,” typically caused by various pollutants. Among the most dangerous are fine particulate matter, known as PM2.5 - tiny particles less than 2.5 micrometers........

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