By Richard Black

(BBC News) The US is trying to block sections of a draft agreement on climate change prepared for next month’s G8 summit, according to documents seen by the BBC.

Washington objects to the draft’s targets to keep the global temperature rise below 2C this century and halve greenhouse gas emissions by 2050.

The draft, prepared by the German G8 presidency, said action was imperative.

With UN talks struggling to extend the current Kyoto targets, the G8 summit is seen as a vital way to regain momentum.

Read the full story from the BBC