Terrorism. Gun control. Global warming. These words receive more media coverage and attract people's attention much more than air pollution. It's easy to dismiss air pollution as insignificant, but ambient air pollution is slowly becoming one of the world's biggest problems. In fact, a recent study shows that air pollution has replaced poor nutrition as the largest preventable health risk globally (Pentland). For this reason, the government should invest far more capital in reducing ambient air pollution than any other threat to humanity, because it would cost more to repair the damage it is currently causing to public health than the money needed to prevent it in the first place. place. .Air pollution is the release of harmful particles into the Earth's atmosphere, which is a complex system essential to supporting life on Earth. One type of air pollution is known as indoor pollution. There are many causes of indoor air pollution, but the main ones include excessive use of pesticides, household products, tobacco, and any other products that release toxic gases or particles. “Indoor air pollution from biomass and coal-based fuels affects half of the world's population and approximately 80% in low-income countries in Africa and South Asia” (CHERG). In fact, more than 2.9 billion people burn wood and coal to carry out daily activities. According to the World Health Organization (WHO), 4.3 million people lost their lives due to indoor air pollution in 2012. Comparing this to other major issues such as global warming, studies “suggest that between 30 and 150 times more people are killed by indoor air pollution than by global warming” (Lomborg). The second type of air pollution is known as outdoor pollution. Causes include... half of paper mills... and a zinc smelting plant that had released excessive amounts of sulfuric acid, carbon monoxide and other pollutants into the atmosphere for years before the disaster" (Story Channel). October 26, 1948, Dense Donora fog appeared to have “trapped air pollutants emitted from the zinc smelter and steel mills close to the ground, where they were inhaled by local residents.” The owner of the zinc plant, Zinc Works, compensated i local residents for damages caused by the pollution. Residents and farmers filed lawsuits totaling more than $4.6 million against US Steel for the loss of crops and livestock. 1951 a settlement was reached and the steel company paid about $235,000. The severe smog killed about 20 people and made thousands more seriously ill over a five-day period, mostly due to hydrogen fluoride and sulfur dioxide poisoning...