Watch | Air pollution kills 7 million people a year: WHO

WHO Director-General Tedros Adhanom Ghebreyesus on September 22nd said that every year, exposure to #AirPollution is estimated to cause 7 million premature deaths and result in the loss of millions more healthy years of life. The World Health Organization (WHO) tightened its air quality guidelines on Wednesday for the first time since 2005, hoping to spur countries toward clean energy and prevent deaths and illness caused by air pollution.