Global Leaders Convene for Emergency Climate Summit Amid Record Heatwaves

Amid an unrelenting wave of unprecedented heat, world leaders have gathered in an emergency climate summit to confront the escalating climate crisis. We examine the stakes, the science, and the urgent policies under discussion.

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1. A Climate Emergency Unfolding

In recent months, the world has witnessed an extraordinary escalation in heat extremes. In late January, Australia endured a prolonged heatwave with temperatures soaring above 49 °C in multiple locations, including Andamooka and Port Augusta, peaking at 50 °C on January 29–30 . Western North America experienced March heatwaves deemed “virtually impossible” without human-induced climate change, with the contiguous U.S. recording its warmest March on record—5.2 °C above the 20th-century average . These trends continued into the summer, with Europe, South Asia, and other regions suffering relentless heat, straining health systems and infrastructure.

2. The Science Behind the Fury

A joint FAO–WMO report reveals that global temperatures for 2023–2025 averaged 1.48 °C above pre-industrial levels, with a 70 percent chance that 2025–2029 will average above 1.5 °C . Human-induced warming accounts for nearly all of that rise, increasing at 0.27 °C per decade . Compounding the crisis, the Global Carbon Budget 2025 report confirms that the remaining carbon budget for limiting warming to 1.5 °C is “virtually exhausted” . The science is clear: without immediate and drastic action, the world is on track for far more frequent and severe heatwaves.