Big emitters like the US and EU want any deal to include emerging economies such as India and China
United Nations members have reached an agreement on how countries should tackle climate change.
Delegates have approved a framework for setting national pledges to be submitted to a summit next year.
Differences over the draft text caused the talks in Lima, Peru, to overrun by two days.
Environmental groups have criticised the deal as a weak and ineffectual compromise, saying it weakens international climate rules.
The talks proved difficult because of divisions between rich and poor countries over the scale and scope of plans to tackle global warming.