In a potato field in Yanggu County, 130km northeast of Seoul, Lee Sang-hyuk dug into the soil and found nothing worth saving.
A week earlier the crop, in Gangwon Province, had looked fine. Now the potatoes came up soft and collapsing, “like boiled potatoes,” spoiled by heat that had turned the ground into something closer to an oven.
“It’s not just one or two fields like this. How can I even put it into words? It’s so upsetting,” he told local Seoul Broadcasting System.
Photo: AP
His ruined harvest is one thread in a punishing summer across east Asia, as record heat swept through South Korea, Japan and Hong Kong in the past few weeks.
On Aug. 2, the southeastern city of Yangsan recorded a temperature of 42.5°C, the highest registered in South Korea since modern weather observations began in 1904.
The heat has since been blamed for at least 31 deaths nationwide, while more than 900,000 livestock and 1.4 million farmed fish have died, according to the Korea Disease Control and Prevention Agency.
Authorities issued a heat warning, urging people to “immediately stop all outdoor activities.”
South Korea President Lee Jae-myung told his Cabinet the extreme weather was “unlike anything we have experienced before.”
“We need to make efforts for a fundamental overhaul of the national crisis system, since this extreme weather is becoming the new normal,” he said.
In neighboring Japan, temperatures reached 40°C or higher at multiple locations and the country recorded its first ever “kokushobi,” or “cruelly hot day,” a new category introduced this year by the Japan Meteorological Agency for temperatures above 40°C. In Tokyo, three lions died of suspected heatstroke at a city zoo.
Scientists say the extremes are part of a wider pattern. Researchers working through Weather Attribution Center Japan found that the country’s intense heat last month would have been “virtually impossible” without global warming.
Without the warming caused by human activity, a heat wave of this scale would occur on average once ever 10,000 years, they said.
The heat struck even amid an El Nino event, a natural climate pattern that has in the past been associated with a lower likelihood of extreme summer heat in Japan.
In Hong Kong, its observatory posted an official temperature of 36.9°C, the highest since records began in 1884, as the outer bands of Typhoon Dolphin swept hot air over the territory.
The record heat also exposed the failings of the territory’s heat stress warning system for outdoor workers, which remained at its lowest tier even as temperatures reached a record high.
“The threshold for the red warning is clearly set too high,” former Hong Kong Observatory director Lam Chiu Ying (林超英) wrote on Facebook. “If even a record-breaking temperature can’t trigger it, isn’t it just a display piece used to decorate a shop window?”
The Hong Kong Labour Department has since said it is reviewing the warning system.
In China’s western Xinjiang region, a weather station recorded a 50°C reading last month and heat waves gripped the country’s northeast, while North Korea reported a run of tropical nights in Pyongyang, with temperatures failing to fall below 25C.
Lee June-yi, a climate scientist at Pusan National University and a coordinating lead author of a chapter of the UN Intergovernmental Panel on Climate Change’s Sixth Assessment Report, said the regional heat wave might have been shaped by a mix of atmospheric circulation patterns and a warming climate.
A strengthening ridge of high pressure over the Tibetan Plateau and western Pacific, layered on top of this year’s El Nino, might have helped create conditions for the heat, she said.
The World Meteorological Organization said in its latest State of the Climate in Asia report that the pace of Asia’s warming from 1991 to last year is about twice that of the preceding three decades.
About 257km south of Seoul, in Gwangju, watermelon farmer Hong Kyung-hee watched fruit that would normally sell at a premium turn to mush.
“The inside was good, the sweetness was good, everything was fine,” he told Korean Broadcasting System at his farm. “But after three days it changed overnight like this. In my 50 years of farming, this is the first time.”
Strawberry farmer Yoon Woo-ha in Damyang County in South Jeolla Province lost seedlings that she had cultivated for three months and would not be covered by insurance.
South Korea’s crop insurance scheme covers only designated crops, growing methods and regions, leaving farmers exposed when losses fall outside those boundaries.
“When the insurance can’t cover this, it goes straight into farm household debt,” Korean Peasants League Gwangju Chapter head Lee Jun-kyung said.
Lee June-yi said that heat waves were expected to become more frequent and intense as the climate heated up, while compound extremes, such as consecutive heat waves and heavy rainfall, were becoming more common.
“There is an urgent need for rapid, large-scale reductions in greenhouse gas emissions to limit further global warming together with well-planned adaptation measures to address the climate change that is already occurring,” she said.
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