น้ำท่วมเกาหลีใต้: ความน่ากลัวของอุโมงค์ทำให้เกิดความหวาดกลัวต่อสภาพอากาศ

This scene, akin to one from a horror film, is a wake up call for South Korea. Climate change is starting to take its toll on this country, that until recently has been spared some of the extreme weather events experienced by other, hotter countries.