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Global Study Counts Almost 3 Million Climate Change-Related Deaths

The Lancet Countdown says heat, drought and wildfire risks are worsening, while cleaner energy prevented 400,000 deaths in 2023.

  • The latest Lancet Countdown report attributes 3 million deaths globally to a warming planet between 2016 and 2023, marking the first time the study quantified heat-related deaths directly due to human-caused climate change.
  • Fossil fuels continue to supply about 80 per cent of global energy, pushing emissions to record highs; the authors cited "vested interests," including "lobbying and disinformation by fossil fuel interests and political allies," as major obstructions to clean energy transitions.
  • Severe heat killed more than 50,000 people across Europe this summer, with scientists attributing about two-thirds to human-caused climate change; heat exposure also caused the loss of 573 billion potential work hours in 2025, resulting in $1.07 trillion in income losses.
  • Western Sydney physician Aditya Vyas recorded a 13 per cent increase in emergency presentations during heatwaves, describing them as a "silent killer." Macquarie University expert Professor Paul Beggs warned that climate change is already impacting health globally, emphasizing no-one was immune.
  • Ahead of COP 31 in Turkiye, the Lancet Countdown report warned that while renewable energy growth "vastly exceeded expectations," global action remains "grossly insufficient." Authors also criticized the USA for promoting fossil fuel expansion and withdrawing from the Paris Agreement.
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12 Articles

Lean Left

According to the report of 146 researchers, climate change has "caused nearly 3 million heat-related deaths" around the world between 2016 and 2023. Its "favourable effects are progressing faster than the global response," deplores the Executive Director of the Lancet Countdown projectClimate change must be declared a "global health emergency" to become a government priority, in order to finance the adaptation of health systems and economies, af…

·Geneva, Switzerland
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Center

This is reflected in the work of 146 scientists who evaluated 54 indicators.

·Montreal, Canada
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Lean Right

More than 70% of the 710,000 heat deaths in 2023 were caused by human action. Researchers from 100 institutions argue that the rate of emission reduction is insufficient.

·Lisboa, Portugal
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El Economista broke the news in Mexico City, Mexico on Tuesday, October 27, 2026.
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