![2017_EME_syria_chemical_1](/sites/default/files/multimedia_images_2017/screen_shot_2017-02-10_at_4.42.53_pm_002.png)
A still from video shows green smoke from a chlorine attack by Syrian government forces in the al-Fardous neighborhood of Aleppo, Syria on December 8, 2016. © 2016 Aleppo Media Center
A still from video shows green smoke from a chlorine attack by Syrian government forces in the al-Fardous neighborhood of Aleppo, Syria on December 8, 2016. © 2016 Aleppo Media Center