A has found that pollution is the world's biggest . It caused one in six in 2015. This was 16 per cent of all deaths. Most of these deaths were from diseases like disease, lung and stroke. The study is in the medical 'The Lancet'. Researchers said about 92 per cent of pollution-related deaths were in poorer countries, countries with a lot of economic , like India and China. Bangladesh and Somalia were the worst affected countries. Brunei and Sweden had the numbers of pollution-related deaths.
A researcher said: "Pollution, poverty, poor , and social are deeply [linked]." He added: "Pollution threatens fundamental human rights, such as the to life." He said air pollution was the biggest killer. It led to 6.5 million deaths. The second biggest killer was pollution. The next killer was pollution in the . A scientist said: "Air pollution is reaching point." She said the people who pollution hit the are those with breathing and lung problems, children and the .