Lowcock called on the Security Council to take "urgent and concrete action".
What does the resolution say?"We put out a statement a couple days ago in which we called for that ceasefire", she said.
They include stipulations that aid deliveries can be made only when security conditions allow and that foreign military forces can act only in co-ordination with Damascus.
The resolution does not cover the groups Islamic State, al Qaeda and the Nusra Front, which Moscow and Damascus say they have targeted in eastern Ghouta. "As the Secretary-General warned us all, 'eastern Ghouta can not wait'".
In the summer of 2016, government forces launched a wide offensive on rebel-held eastern neighborhoods of the northern city of Aleppo forcing rebels and their families to leave the area.
The draft resolution to be voted on rejects Russia's proposed amendments which would delay any cease-fire.
"The challenge is how to achieve this". "What we need is a sustained cessation of hostilities and we need it desperately".
Kremlin spokesman Dmitry Peskov on Wednesday described as "groundless" accusations that Russian Federation bears some of the blame for civilian deaths in Eastern Ghouta.
How bad is the situation in the Eastern Ghouta?
The United States has criticized Russian Federation over the bombing of Syria's eastern Ghouta, saying Moscow has a "unique responsibility" for more than 400 people being killed in the Damascus suburb this month.
United Nations human rights chief, Zeid Ra'ad al-Hussein, has called the attacks a "monstrous campaign of annihilation".
Aksoy said in Turkey Friday that "what is happening in Ghouta is a war of annihilation and crimes against humanity".
The opposition-controlled Eastern Ghouta, a mostly rural area on the outskirts of the capital Damascus, has been under government siege since 2013.
Referring to the harrowing images coming out of the Eastern Ghouta, he said: "If this is not going to convince [UN security] council members, council states, of the need for a ceasefire, honestly we don't know what is it that would convince them".
Outside UN headquarters in NY, a coalition of aid groups put up three billboards, inspired by the film "Three Billboards outside Ebbing, Missouri" that said "500,000 dead in Syria".
"I just surfaced from the shelter basement of a building, I haven't been outside the shelter all day because the intensity of the bombardment and airstrikes", he said.
Condemning the Syrian regime for targeting "its own people", Ms Merkel said: "The killing of children, the destruction of hospitals - all that amounts to a massacre that must be condemned and which must be countered with a clear no".