Smoke plumes emanating from wildfires are swept high up into the air and spread over thousands of kilometers even days after a fire has been put out. The fine particles and harmful ozone contained in these plumes often have ...
Jan 09, 2018 in Environment
Iran shut schools around Tehran Sunday and cancelled sporting events as thick smog blanketed the capital despite curbs on road traffic and industrial activity.
Dec 17, 2017 in Environment