Citizens take a break in the shade at Yangjaecheon in Seoul amid scorching daytime heat, July 30. Yonhap

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A heat wave with temperatures approaching 40 degrees Celsius has continued across Korea.

President Lee Jae Myung said during a recent meeting with senior secretaries and aides that the current heat wave is “effectively a national disaster situation,” stressing that the government should maximize the level, scope and speed of its policy response to protect people’s lives and and ensure public safety.

In a related development, an interesting study from the United States found that mortality rates in large cities may decrease as the area covered by tree shade increases.