On his You Tube channel, The Syrian National Coalition warns that Ghouta is on the path of a genocide, because of Russian shelling associated to Assad’s means (chemicals, and a siege since 2013).
Below is the video, in Arabic, with very good English subtitles:
Putin using his armament in Syria, especially in Ghouta: remember how the Waffen-SS tried his weaponry in Guernica, in 1936.
A contemporary artist, Bonnie Kipperman, realized a Syrian Guernica: 
Moreover, Russia vetoes all the Security Council Resolutions to condemn Assad.
They are both responsible for the Syrian genocide.
On Twitter, the hashtag #HumanRightsDiedInGhouta is now viral.
I write this very short post only to raise awareness on the situation in Ghouta, and as a human right defender.
By all means you have, act for Ghouta.