Pollution is the world's  killer. It caused  in six, or 16 per cent, of all  deaths in 2015. Most of  deaths were from diseases like  disease, lung cancer and . Researchers said 92 per cent of pollution-related deaths were in  countries, especially countries with a lot of  development. Bangladesh and Somalia were the countries  affected. Brunei and Sweden had the lowest  of deaths because of pollution.
A  said: "Pollution, poverty [and] poor health…are  [linked]." He said pollution threatens human , such as the right to  and health. Air pollution was the biggest killer. It killed 6.5  people in 2015. The second biggest killer was  pollution. Next, was pollution in the . A scientist said: "Air pollution is reaching  point." People with breathing , children and the  are hardest hit.