2025 Marks Earth's Second-Hottest Year as Climate Crisis Accelerates

The planet's climate crisis has deepened, with every major indicator showing record-breaking extremes. A new report from the World Meteorological Organization (WMO) confirms that 2025 was among the hottest years ever recorded, pushing global temperatures to dangerous new levels. Experts warn that Earth's systems are now under unprecedented strain. The WMO's State of the Global Climate 2025 report reveals that last year's global average temperature sat around 1.43 °C above pre-industrial levels. This marks the second or third warmest year on record, capping off the hottest 11-year period (2015–2025) since measurements began. Alongside rising temperatures, Earth's energy imbalance—the gap between incoming solar energy and escaping heat—has reached an all-time high.

Greenhouse gas concentrations in the atmosphere remain at record levels, trapping more heat. The excess energy is not just warming the air but also accumulating deep in the oceans. This imbalance is accelerating real-world consequences, including faster glacier melt and rising sea levels.

U.N. Secretary-General António Guterres responded to the findings with urgency, stressing the widening gap between scientific warnings and political action. Meanwhile, unregulated space activity continues to add to pollution, further complicating efforts to stabilise the climate. The report underscores a stark reality: Earth's climate limits are being exceeded across all key measures. With temperatures, ocean heat, and greenhouse gases all at historic highs, the data leaves little room for doubt. Scientists and policymakers now face mounting pressure to bridge the divide between evidence and meaningful response.