With hours to the deadline, Nigeria became the 144th country to ratify the Doha Amendment, ensuring it would come into force before it expires this year
Legal experts wrote to Prime Minister Scott Morrison warning the use of old carbon credits to meet the country’s 2030 goals would set a ‘dangerous precedent’
World’s fourth largest emitter says backing for KP2 underlines its climate leadership as coalition to protect UN process against Trump gains pace
The Paris climate agreement owes more to its predecessor than is commonly acknowledged – and that is no bad thing, writes Michael Grubb
NEWS: Brussels says bloc will sign off beleaguered treaty before successor crafted at key climate summit
ANALYSIS: Hailed as an answer to global warming, the UN’s flagship climate treaty failed to curb carbon emissions, so what will its legacy be?
NEWS: Move by Brussels offers some integrity to beleaguered treaty, one year before UN hopes to agree global climate deal
NEWS: Peru and Djibouti say they have officially signed on to the UN’s treaty to reduce emissions prior to 2020
NEWS: UN patience wears thin as nine out of 10 governments fail to sign 2012 climate treaty extension
NEWS: Norwegian researchers warn the world is further from an effective climate treaty than it was 15 years ago, as countries try to duck their obligations
NEWS: Pressure growing on EU as internal rows force bloc to postpone backing of key UN treaty
Kyoto Protocol failed because it didn’t get backing of top emitters US and China, so negotiators know a new treaty will have to bring both on board
Decision likely to dampen concerns from developing countries but critics say 20% reduction target should be raised
Lead negotiator assures nations at UN climate talks second commitment period will be ratified by member states in 2013
Rare good news for climate treaty as Kabul becomes 192nd capital to ratify Protocol
Energy efficiency and investment plan counts on $4.5bn of Kyoto-related revenue despite acrimonious split from treay last year
But continued uncertainty in global carbon markets keeps Clean Development Mechanism credit prices low
Minamata Convention on mercury signed last week shows that multilateral environment deals can be done – but does this apply to talks on climate change?
Representatives will gather in Minsk to determine future participation in landmark climate change treaty
UK Energy and Climate Secretary of State Ed Davey says he is “working in assumption” that European Union will increase climate change targets in 2014