WHO estimates that around seven million people die annually from exposure to fine particles in polluted air that enter the lungs and cardiovascular system. Speaking about the data, WHO Director-General Tedros Adhanom Ghebreyesus said sustainable development will not be possible without action to combat air pollution. Diarmid Campbell-Lendrum, WHO, noted that the Paris Agreement on climate change is fundamentally a “public health agreement, potentially the most important public health agreement of the century”.