Heavy fog shrouds Beijing's Palace Museum. [File photo]
A new report from the Organization for Economic Cooperation and Development (OECD) says pollution will become biggest cause of premature death, killing an estimated 3.6 million people a year by 2050, most of them in China and India, Reuters reported.
But rich countries will suffer worse effects from exposure to ground-level ozone, because of their ageing populations – older people are more susceptible.
Urban air pollution is set to become the biggest environmental cause of premature death in the coming decades, overtaking mass killers such as poor sanitation and a lack of clean drinking water.