Climate Change Fuels Extreme Heat, Affecting Billions | JQJO

A new report reveals that human-caused climate change resulted in 4 billion people experiencing at least one extra month of extreme heat between May 2024 and May 2025. The extreme heat led to illness, death, crop failure, and strained infrastructure. Scientists used peer-reviewed methods to show that climate change significantly increased the likelihood and intensity of these heat events, particularly impacting vulnerable populations. The report emphasizes the often-unreported nature of heat-related deaths and highlights the need for improved early warning systems, heat action plans, and urban planning strategies to mitigate future risks. Without phasing out fossil fuels, heat waves will continue to worsen.