According to a recent study conducted by Monash University in Australia, global heatwave have a devastating worldwide impact, causing over 150,000 deaths per year. The study, which was published in the journal PLoS Medicine, found that India was the hardest harmed.

Researchers studied daily temperature and mortality data from 750 sites in 43 countries over three decades (1990-2019). According to the data, heatwaves account for around one-third of heat-related deaths worldwide, or 1% of total annual deaths.

Assessing the Impact of Global Heatwaves: Insights and Recommendations

Among the key findings, India is the most affected country, accounting for more than 20% of global heatwave deaths. China and Russia follow, accounting for approximately 14% and 8% of heatwave fatalities, respectively.

global heatwave
Source: SpringerLink

The study also discovered alarming tendencies in rising death rates and heatwave durations. In compared to the study's first decade (1990-1999), the average length of heatwaves has increased from 13.4 to 13.7 days per year. Additionally, global average temperatures have risen by 0.35 degrees Celsius per decade.

The study highlights considerable geographical and economic variations in heatwave-related mortality, demonstrating a greater risk in drier climates and lower-middle-income countries. These places are disproportionately affected, with increased risks and effects from extended heatwaves.

Immediate actions include implementing heat response plans, establishing early warning systems, and improving healthcare services to lower fatality rates during heatwaves. These steps can provide communities with the tools and resources they need to respond quickly to extreme heat occurrences, potentially saving lives.

The report underlines the need for comprehensive mitigation strategies to combat climate change and improve long-term resilience. This includes reducing greenhouse gas emissions and boosting the use of renewable energy sources to counteract global warming. Furthermore, supporting the development of green infrastructure, such as urban parks and green roofs, can help to cool cities and provide shade, so reducing the urban heat island.

Improving community preparedness is another key component. Educating the public about the dangers of heatwaves and training communities in heatwave preparedness can motivate individuals to take precautions to protect themselves and their loved ones. This involves encouraging activities such as staying hydrated, seeking out cool places, and identifying the symptoms of heat-related illnesses.

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