Earth is experiencing a historic and dangerous surge in heat accumulation, with the World Meteorological Organization (WMO) and the United Nations confirming that 2025 saw the highest levels of trapped heat since records began. The latest reports, released on World Meteorological Day 2026, warn that the planet’s energy imbalance—driven by rising greenhouse gases—has reached a critical threshold, threatening to lock in climate impacts for centuries or even millennia. Scientists stress that urgent international action is needed to address the escalating crisis and avert irreversible damage to ecosystems and societies worldwide.La Presse+2
The WMO’s 2025 Global Climate Status Report reveals that Earth’s energy imbalance—the gap between incoming solar energy and outgoing heat—has soared to its highest level since 1960. The period from 2015 to 2025 marks the 11 warmest years ever recorded, with 2025 standing out as exceptionally extreme. Scientists warn that an upcoming El Niño could further amplify global heat. Greenhouse gas concentrations are now at their highest in at least 800,000 years, fueling persistent warming and climate instability.Huanqiu+2
Over 91% of excess energy is being absorbed by the world’s oceans, causing rapid warming, accelerated glacier melt, and rising sea levels—now exceeding 4 mm per year, double the previous century’s rate. The warming oceans have set new heat content records for nine consecutive years, destabilizing marine and terrestrial ecosystems, threatening food security, and intensifying extreme weather events globally.Huanqiu+2
The WMO and UN reports emphasize that the current energy imbalance and heat accumulation will have long-lasting impacts, with consequences expected to persist for hundreds or even thousands of years. Extreme weather, ecological disruption, and increased natural disasters are projected as direct results. The reports urge immediate, decisive reductions in greenhouse gas emissions, warning that the window for effective intervention is rapidly closing.CCTV+2
The severity of the crisis has prompted renewed calls for international cooperation and policy action. The WMO underscores the need for science-based solutions and urgent emissions cuts to prevent the worst outcomes. The intersection of climate change with technological and geopolitical developments, including the influence of El Niño and record-breaking corporate and national achievements, highlights the complexity and global scale of the challenge.Huanqiu+2