Unprecedented Summer Heat in the Northern Hemisphere

The Northern Hemisphere experienced an unprecedented summer during the years 2023, 2024, and 2025, marking them as the hottest years in modern history. Climate agencies in the European Union and the United States have announced that these record-breaking summer temperatures are a direct result of climate change caused by human activities. This change not only raises the global average temperatures but also increases the frequency of deadly heatwaves.

Record High Temperatures

According to the European Union’s Copernicus Climate Change Service, the summer of 2025 was the third hottest on record, with global temperatures 0.47 degrees Celsius higher than the average from 1991 to 2000. In the United States, the National Oceanic and Atmospheric Administration (NOAA) classified the recent Northern Hemisphere summer as the third hottest in its 176-year history, with temperatures 1.02 degrees Celsius above the 20th-century average.

These statistics highlight the impact of climate change on global temperatures, driven mainly by human-induced climate changes.

Impacts on Public Health

A new study has shown that climate change has nearly doubled the number of heat-related deaths in European cities during this summer. According to research led by scientists from Imperial College London and the London School of Hygiene & Tropical Medicine, 68% of heat-related deaths in 854 urban areas were due to climate change.

Researchers emphasize that these figures might be conservative as they cover only 30% of Europe’s population and exclude other regions, suggesting that the true impact of climate change on public health could be much greater.

Climate Change Challenges and the Future

The rise in temperatures and persistent heatwaves pose a global challenge requiring immediate action. In the United States, the number of summer heatwaves has doubled from an average of two in the 1960s to more than six today. These heatwaves have also become longer and more prolonged, increasing public health challenges.

Studies indicate that children born in 2020 will face seven times more heatwaves during their lifetime compared to those born in the 1960s, reflecting the urgent need for measures to reduce greenhouse gas emissions to tackle this challenge.

Conclusion

In conclusion, it is clear that climate change plays a significant role in increasing global temperatures and deadly heatwaves. Recent research provides strong evidence that human activities are the primary cause of these phenomena. There must be international cooperation and intensive efforts to reduce carbon emissions and adapt to changing climatic conditions to protect communities worldwide.