Global Climate Report Warns 1.5°C Threshold Will Be Exceeded by 2030

A new edition of the Indicators of Global Climate Change (IGCC) report, authored by more than 70 scientists from 56 institutions across 17 countries, warns that global warming has already reached 1.37 °C in 2025 and is on track to surpass the 1.5 °C limit by 2030 if emissions continue at current rates. The study notes record‑high CO₂ emissions of 56.8 billion tonnes of CO₂‑equivalent in 2024, driven mainly by fossil‑fuel combustion.

Sea‑level rise has reached a cumulative 23 cm since 1901, and marine heatwaves have tripled in frequency, with the average duration increasing from 36 to 58 days. For the first time, the report adds an indicator measuring the damage caused by marine heatwaves to ecosystems. Researchers also project that the 2027 El Niño event could be especially severe, amplifying existing climate stresses.

The report highlights that global climate data systems are threatened by reduced funding, referencing the United States' 2024 withdrawal from the Paris Agreement and cuts to key climate‑monitoring programs. "Despite progress, global greenhouse‑gas emissions continue to rise, causing rapid human‑driven warming," said French climatologist Valérie Masson‑Delmotte, a co‑author of the study.