Close Nowadays, worsening air pollution has been proven to be a silent killer, causing millions of deaths worldwide every year. And while many think COVID-19 is a pressing threat, experts claim that air pollution is a 'pandemic in slow motion,' which can cause disastrous consequences when ignored. Research has shown that the risk of premature death is higher for people who were exposed to unhealthy air for a prolonged period. According to Medical News Today, air pollution remains one of the leading causes of death in several countries. Millions of deaths worldwide due to air pollution A recent study about the effects of outdoor air pollution bore alarming findings. Most developing countries are plagued with this pressing problem.