A lasting solution seems further away than ever now that the territory held by the so-called Islamic State is receding. Turkey has entered Syria, ostensibly on the side of the US but really to prevent Kurds gaining from the Islamic State's retreat.
The only thing uniting all sides, except Russia, is opposition to Bashar Al-Assad's regime. But with Russia's backing, Assad looks capable of surviving.
As long as he is there, the rebellion will continue, refugees will continue to flee the country and they will not feel they can safely return.
New Zealand has already run a special council session on Syrian since taking the chair this month. If anything constructive came of that it has been set back by the incidents of the past few days.
The most that Key hopes to achieve today is for the council to put aside questions of blame for the latest attacks and preserve the truce under which Russia stops the Syrian Air Force attacking rebel-held centres so that aid can reach them.
That is the least the UN needs to achieve as world leaders address the General Assembly in a September session dominated by Syria and the wider refugee problem. Syria is by no means the only source of refugees from war, repression and poverty, accounting for about 4 million of the 21 million people seeking resettlement in another country.
Most of the Syrians are in neighbouring Lebanon, Jordan or Turkey. Entry to Europe through Greece has been stopped by a deal between the European Union and Turkey last year.
But that has not stopped immigration becoming a defining issue in European and US politics this year, fuelled by occasional acts of "terror". One such bombing occurred in New York on the eve of the UN's proceedings this week.
The UN might be a clumsy and mostly ineffectual forum for resolving the world's tensions but it is better than nothing. New Zealand believes it could be much better and right now it has got the best position to try to make these meetings work.