A new study reveals that without phasing out fossil fuels, global temperatures will rise, causing severe health and societal impacts. Approximately 49% of the global population experienced an extra month of extreme heat over the past year, impacting four billion people. The report emphasizes the deadly nature of heatwaves, often overlooked compared to other disasters, with significant suffering among vulnerable communities. The Caribbean was notably affected, with Aruba seeing 142 more extreme heat days than expected without climate change, highlighting urgent climate action needs.
Researchers analysed weather data from May 1, 2024 to May 1, 2025, finding that 49% of the world’s population experienced an additional month of extreme heat.
Heatwaves are silent killers, as deaths linked to extreme heat are often underreported or mislabelled, affecting the most vulnerable.
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