Delegates have approved a framework for setting national pledges to be submitted to a summit next year.
Differences over the draft text caused the two-week talks in Lima, Peru, to overrun by two days. Environmental groups said the deal was an ineffectual compromise, but the EU said it was a step towards achieving a global climate deal next year in Paris.
The talks proved difficult because of divisions between rich and poor countries over how to spread the burden of pledges to cut carbon emissions.
The agreement was adopted hours after a previous draft was rejected by developing countries, who accused rich nations of shirking their responsibilities to fight global warming and pay for its impacts.
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