'With only 100 days left to agree a planet saving deal it's crucial that we continue to push for political momentum ahead of the crunch climate talks in Copenhagen. We're going all out to get an agreement that's ambitious, effective and fair and though it's not going to be easy, with China and the US now wanting a deal, I'm optimistic that we can succeed. Failure is not an option which is why the next few months will be critical and why there can be no Plan B on climate change.' Ed Miliband

Nearly 200 countries will come together in December at the UN Climate Conference in Copenhagen, to agree an international deal for tackling climate change. The current international agreement, the Kyoto Protocol, will expire in 2012. Copenhagen, in effect, will create its successor.

It is 100 days until that moment.

Securing an agreement will be a challenge. Major achievements so far on the road to Copenhagen include:

• June 26, the launch of the Road to Copenhagen document, which first time ever set out its detailed position ahead of global climate talks. 'This is a make or break time for our climate and our future', said UK Climate and Energy Secretary, Ed Miliband
• June 26, Prime Minister's finance initiative, which broke new ground among world leaders in setting out how the world should pay for avoiding dangerous climate change and adapting to its impacts. The Prime Minister pledged urged countries to work together on a global figure of around $100 billion per year by 2020
• In July, An 'historic' agreement by the MEF and G8 leaders – to cap global temperature rises by two degrees Celsius and cut greenhouse gas emissions by 80% by 2050 – paves the way for a global agreement at Copenhagen.

Progress towards Copenhagen has also continued through the UNFCCC's formal negotiation channels, through Ministerial visits that include discussion on policy issues like deforestation, and, domestically, through the launch of the UK Low Carbon Transition Plan.