The United Nations climate summit in Lima, Peru, has ended with a deal that forms the basis for a new global agreement on climate change. The Lima Accord marks the first time all nations have agreed to cut back on carbon emissions, and says all countries have “common but differentiated responsibilities” to tackle global warming. But it is not legally binding and gives each country until next March to announce how much it will reduce. A final agreement will be negotiated at the climate summit in Paris next year. In a statement, the environmental group Friends of the Earth International criticized the Lima Accord, saying: “The only thing these talks have achieved is to reduce the chances of a fair and effective agreement to tackle climate change in Paris.”