Heat wave: Climate change has brought 26 extra days of extreme heat

On a global level climate change It brought 26 extra days heat wave estimates a new study over the previous 12 months.

To calculate the number of extra hot days due to greenhouse gas emissions, the researchers looked at the period from May 15, 2023 to May 15, 2024, and noted the days when temperatures were warmer than the 1991-2020 average.

The scientists then assessed the role of climate change in each of these extremes.

A report by the International Red Cross Climate Center and World Weather Attribution and Climate Central states that global warming doubles the likelihood of extreme temperatures.

Most of the world’s population experienced heat waves last year, with 6.3 billion people. people – about 78% of humanity – experience at least 31 days of extreme heat.

A total of 76 extreme heat waves were recorded in 90 different countries on all continents except Antarctica.

The five most affected countries are in Latin America: Suriname with 182 days of heat, compared to 24 that would have been recorded in the absence of climate change, Ecuador (180 days instead of 10), Guyana (174 instead of 33). ), El Salvador (163 instead of 15) and Panama (149 instead of 12).

“Floods and typhoons make headlines, but the effects of extreme heat are also deadly,” said Jagan Chapagain, secretary-general of the International Federation of the Red Cross (IFCR).

“In the past 12 months, tens of thousands of people have died due to extreme heat, but the real number of victims is probably in the hundreds of thousands or millions,” the organization estimates.

A benchmark study in Europe linked 61,672 deaths to the 2022 summer heat wave.

Aditya V. Bahadur, director of the Red Cross Climate Center, says extreme heat has “devastating consequences for human health, basic infrastructure, the economy, agriculture and the environment.”

He called for strengthening emergency response services, improving the organization of urban space and the safety of workers worldwide.

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