Climate chief Yvo de Boer this week welcomed a near-complete list of post-2012 emission reduction pledges from industrialised countries, but warned that the level of ambition is not high enough.

De Boer said that his confidence is buoyed by developments since the start of the year, including the fact that almost all developed countries have tabled emissions cuts, according to an article on the UN Framework Convention on Climate Change (UNFCCC) website.

“The challenge now is to get that list complete and to raise the ambition level though negotiation on international co-operation,” de Boer is quoted as saying.