The scorching heatwave sweeping across Asia has left a trail of devastation in its wake, with potatoes 'boiling' in the ground and farmers facing ruin. The extreme temperatures have not only caused physical harm but also exposed the vulnerabilities of agricultural systems and the limitations of warning systems. This crisis serves as a stark reminder of the urgent need for climate action and adaptation measures.
In South Korea, the heatwave has been particularly devastating. The country's disease control agency reports at least 31 deaths and over 900,000 livestock deaths, while 1.4 million farmed fish have perished. The highest temperature recorded in South Korea since 1904, 42.5C, was recorded in the city of Yangsan on August 2. This extreme weather has prompted the country's president, Lee Jae Myung, to call for a fundamental overhaul of the national crisis system, recognizing that extreme weather is becoming the new normal.
In neighboring Japan, the heatwave has also been severe. The country introduced a new category, 'kokushobi' or 'cruelly hot day', for temperatures above 40C. Tokyo's zoo reported the deaths of three lions due to suspected heatstroke. Scientists at Japan's Weather Attribution Centre found that the intense July heat would have been 'virtually impossible' without global warming, with such heatwaves occurring once every 10,000 years on average without human-induced warming.
Hong Kong's Observatory recorded the highest temperature since 1884, 36.9C, as Typhoon Dolphin swept hot air over the city. The city's heat stress warning system for outdoor workers was criticized for remaining at its lowest tier despite the record-breaking temperatures, highlighting the need for more effective and responsive warning systems.
In China's Xinjiang region, a weather station recorded a 50C reading in July, and heatwaves gripped the country's northeast. North Korea reported a run of tropical nights in Pyongyang, with temperatures failing to fall below 25C. Climate scientist June-Yi Lee suggests that the regional heatwave may have been shaped by a mix of atmospheric circulation patterns and a warming climate.
The World Meteorological Organization's report on Asia's climate reveals that the pace of warming in Asia between 1991 and 2025 is roughly twice that of the preceding three decades. This rapid warming has severe implications for agriculture, as evidenced by the ruined harvests in South Korea and the potential for crop failures in other regions.
Farmers in South Korea are particularly vulnerable, as the country's crop insurance scheme covers only designated crops, growing methods, and regions. This leaves farmers exposed when losses fall outside these boundaries, leading to increased farm household debt. Professor Lee warns that heatwaves are expected to become more frequent and intense, and compound extremes such as consecutive heatwaves and heavy rainfall are becoming more common.
The devastating impact of the heatwave on agriculture and the environment underscores the urgent need for rapid, large-scale reductions in greenhouse gas emissions and well-planned adaptation measures to address the climate change that is already occurring. This crisis serves as a stark reminder of the interconnectedness of our planet and the need for global cooperation to mitigate the impacts of climate change.
