Energy and environment ministers from the Group of 20 rich nations have failed to agree on the wording of key climate change commitments in their final communique, Italy's Ecological Transition Minister Roberto Cingolani said on Friday.
The G20 meeting was seen as a decisive step ahead of United Nations climate talks, known as COP26, which take place in 100 days' time in Glasgow, Scotland, in November.
The failure to agree to common language ahead of that gathering is likely to be seen as a setback to hopes of securing a meaningful accord in Scotland.