This week, countries worldwide have experienced a record-breaking heatwave, threatening the lives of over 100 million people globally.
The extreme temperatures have already resulted in hundreds of deaths, including at least 100 fatalities due to heat stress during the Hajj pilgrimage over the past three months.
Climate experts have identified these heatwaves as a clear indication of climate change, offering a glimpse into the future if such phenomena continue.
The early onset of this heatwave is unusual for the early summer season, suggesting that climate change will generally make heatwaves more dangerous.
Early heat can catch people off guard, as their bodies have not yet adapted to the high temperatures.
Climate change also means that heatwaves are occurring earlier each year, putting more people at risk.
As extreme weather becomes more common, experts emphasize the urgent need for cities to upgrade their infrastructure to cope with the heat.
The director of climate resilience and sustainability at the Center for Climate and Energy Solutions, a US-based non-profit, stated that the longer society takes to address these changes, the more lives may be lost.
Research shows that many people remain skeptical about the impact of the climate crisis on their lives. Between 2000 and 2019, extreme heat caused an estimated 489,000 deaths annually, according to the World Meteorological Organization.
Last year, 14% of Americans said there was no concrete evidence of climate change. While the effects of climate change may be irreversible, scientists assert that reducing future temperature increases is possible by halting greenhouse gas emissions.
A 2023 United Nations report stated that countries must immediately stop using fossil fuels to prevent dangerous temperature rises in the next decade.
Experts have noted that many people underestimate how quickly extreme heat can become deadly, especially in humid conditions. In the United States, extreme heat kills more people annually than some other weather events, such as hurricanes and floods.
Climate journalist Jeff Goodell highlighted that people often do not realize that heat can be fatal.
Those with lower socioeconomic status or specific medical conditions are most vulnerable. An environmental scientist added that the most vulnerable individuals—those least likely to have air conditioning—are also the least likely to have a nearby park to cool off.
