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China, India & US join 60+ countries, representing over 78% global emissions, that submit 2020 mitigation targets. Targets are in 'striking distance' of 2 degrees.

Highly anticipated COP-15 negotiations begin. View video diaries, blogs, commentary and news from the negotiations as 192 countries hammer out a global climate deal.

View passionate film from the Commonwealth youth, who represent more than half the Commonwealth’s 2 billion citizens, urging world leaders for a climate deal.

PM Gordon Brown addressed MEF, citing urgent need to avoid climate ‘catastrophe’. Ed Miliband says London-based MEF outcomes show COP15 deal is ‘doable’.

Foreign Secretary David Miliband and Climate Secretary Ed Miliband host first ever joint press conference, stressing that Copenhagen deal is ‘in the balance’.

L’Aquila Summit concludes with ‘historic’ agreement to limit global temperature rise to 2 degrees C, paving the way for a global agreement at Copenhagen.

PM proposes $100bn finance breakthrough - the first time a world leader tables a figure on climate finance. This figure is later agreed at COP15, and is a key outcome of the Accord.

Listen to audio file of Professor John Beddington: communicating to the public about the science of climate change.

Read Richard Black's blog: 'the deadline that isn't a deadline for an accord that isn't an accord'

Ed Miliband: 'It's right that there's rigour applied to all the reports about climate change, but... wrong that when a mistake is made it's somehow used to undermine the overwhelming picture that's there.'

Ed Miliband tells Channel 4: 'It is profoundly irresponsible is to suggest that one fact that was wrong about a glacier undermines the overall picture on climate change'