Overview:
"One point five to stay alive is not a slogan, it's a lifeline." That was the message from Pacific climate leaders this week, as a new UNEP report confirmed the world is on track to overshoot the 1.5°C warming limit — with the Pacific bearing the heaviest cost.
By: L.N. Reklai
KOROR, Palau (Sept. 3, 2026) — “One point five to stay alive is not a slogan, it’s a lifeline,” Marshall Islands Climate Envoy Tina Stege told reporters this week, delivering a sobering assessment of a new UNEP report showing the world is on track to overshoot the 1.5-degree-Celsius warming threshold.
Stege, who also serves as Regional Envoy for Oceania for COP31, said the report should reset global climate talks around the 1.5C target ahead of the U.N. General Assembly in New York, a UNFCCC loss-and-damage meeting in the Marshall Islands, and the COP31 summit in Turkey. She said keeping any overshoot as brief and shallow as possible will require immediate, deep emissions cuts, a priority focus on methane, and a rapid phase-out of fossil fuel investment.
Vanuatu’s Minister for Climate Change, Ralph Regenvanu, said the International Court of Justice has recognized 1.5C as the internationally agreed temperature goal, and warned that failing to sharply cut emissions within the next four years would deepen and prolong any overshoot. He called for a 1.5-aligned pathway for the Pacific built on 100% renewable energy, pointing to Vanuatu’s Tusuriki Call and the draft Palau Declaration, which names climate change the region’s greatest security threat.
Tuvalu’s Minister for Home Affairs, Climate Change and Environment, Maina Talia, said the crisis is no longer distant. He cited threats to Tuvalu’s tuna-dependent economy and said his country will host an international event on transitioning away from fossil fuels next April, alongside a special leaders’ event in October, to move the discussion from conference rooms to the realities Pacific communities face.
Sefanaia Nawadra, director general of the Secretariat of the Pacific Regional Environment Programme, said any overshoot will only be temporary if major emitters follow through on the emissions cuts they pledged under the Paris Agreement. He said current “gap” assessments likely understate the shortfall because they measure pledges rather than actual cuts.
Andrew Jones, deputy director general of the Pacific Community (SPC), outlined the scientific stakes across three areas. Warming seas could push tuna stocks — which generate roughly 30% of the world’s tuna catch within Pacific exclusive economic zones — eastward out of the region, costing island governments up to $90 million a year in access fees, or about 13% of government revenue in some countries. Coastal fisheries catches could fall by 65% in some areas, driven partly by a 44% loss of mangroves, seagrass and reefs, cutting about 29 kilograms of protein per person annually — roughly two family meals a week. Jones added that flooding events now considered once-in-a-century occurrences for Tuvalu could strike every 10 years by 2050, causing an estimated $35 million in annual damage, and could become five-times-a-decade events by century’s end, with damages reaching $63 million a year.
Across all five panelists, one message was consistent: the world must urgently accelerate the transition away from fossil fuels to keep 1.5C within reach, panelists said, describing the window to act as rapidly closing.
Asked whether Australia was doing enough on fossil fuels, Regenvanu said no. “You need to stop expansion,” he said, calling on major fossil fuel producers to honor their transition commitments.