The outcome of the 25th iteration of the talks, known as COP, has been widely panned, with a small bloc of big emitting countries blocking any progress towards the Paris Agreement.
It was also the latest blow for Australia's so-called 'Pacific step up', with Canberra's stance at the talks admonished by Pacific leaders.
Negotiators in Madrid tried to iron out the final rules of 2015's UN Paris Agreement, to agree on greater ambition to tackle climate change.
