7156699

Home -

Climate change linked to nearly 100,000 heatwave deaths in 2023: study

Xinhua
| October 7, 2025
2025-10-07

MELBOURNE, Oct. 7 (Xinhua) -- Nearly 100,000 deaths from 2023's unprecedented heatwaves were linked to human-induced climate change, according to an Australian-led global study.

The study released Tuesday found that unprecedented heatwaves in 2023 caused an estimated 178,486 excess deaths worldwide, equivalent to 23 deaths per million, with more than half attributable to manmade climate change.

The international team of researchers analyzed climate and mortality data from 2,013 locations in 67 countries and regions, showing that about 54 percent of the heatwave-related deaths -- nearly 97,000 fatalities -- were attributable to human-induced climate change.

The researchers found the 2023 heatwaves occurred during the hottest year on record, 1.45 degrees Celsius above pre-industrial levels.

Southern Europe recorded the highest 2023 heatwave death rate at 120 per million, followed by Eastern and Western Europe, according to researchers from Australia's Monash University and global partners.

Heatwave-related deaths were concentrated in subtropical and temperate zones of the Northern Hemisphere, where prolonged extreme temperatures exacerbated cardiovascular, respiratory and other chronic health conditions, the study said.

The findings highlight "the urgent need for adaptive public health interventions and climate mitigation strategies to reduce future mortality burdens in the context of increasing global warming," it said. Enditem

7156723