LONDON • Group of 20 (G-20) ministers are likely to end talks this week without an ambitious deal on climate change, another setback in the fight against rising temperatures ahead of key negotiations this year.
Energy and environment ministers at a G-20 meeting in Naples, Italy, are stuck on a number of issues, said officials and diplomats familiar with the talks. They will kick a final decision to a meeting of their leaders in October.
The parties have not been able to agree on specific actions and firm timetables needed to reach net-zero global emissions by 2050 and keep global warming at 1.5 deg C, according to a draft communique and the officials.
Despite major net-zero commitments from the world's largest polluters in the past 12 months - and a backdrop of dramatic weather events - two people familiar with the talks said it would be extremely difficult to reach a substantive agreement given the scale of the differences.
Securing an ambitious plan is one of the main goals of the G-20 this year, ahead of global climate talks in Glasgow in November.
For a second time this month, G-20 ministers will once again fail to agree on net-zero greenhouse gas emissions or keeping global warming to 1.5 deg C - the more ambitious of the two temperature goals under the UN's 2015 Paris Climate Agreement.
Instead, the ministers only recognised "the impacts of climate change at 1.5 deg C are much lower than at 2 deg C".
Phasing out coal, the dirtiest fossil fuel, is one sticking point, as G-20 chair Italy is pushing for a phase-out to be included in the communique for the first time.
But the draft document shows the group will not commit to ending the use of coal domestically, and only urges its members to follow the Group of Seven (G-7) in ending overseas coal finance.
Two developed economies are pushing back against new commitments on coal, and a handful of emerging economies are also resisting an effort to define clearer targets, the people added. The draft communique instead focuses on "deployment and dissemination of high-efficiency technologies" to end the use of "unabated coal".
The G-7 and the G-20 are seen as staging posts along the path to the global climate talks known as COP26, to be held in Glasgow in November. G-20 leaders are to meet in Rome before that gathering.
Last month's summit of G-7 leaders in England highlighted the difficulty of reaching an agreement on climate at the highest levels of power. Those countries agreed to stop funding coal overseas but failed to halt its domestic use. Progress was blocked by last-minute nerves, political tensions and a shortfall of funding.
With just 100 days until the start of COP26, time is running out, said Mr John Kerry, the US special presidential envoy for climate, during a speech in London this week.
The G-20 talks come as countries around the world are feeling the effects of climate change, with nations from China to Germany suffering intense flooding, while heat waves and fires struck the US West Coast and south-western Canada and Siberia.
Mr Kerry has said COP26 is the last chance to keep alive the chance of limiting temperature rise to 1.5 deg C.