Most Popular
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[AtoZ into Korean mind] Humor in Korea: Navigating the line between what's funny and not
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[Exclusive] Korean military set to ban iPhones over 'security' concerns
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Yoon seeks rebound, taps 5-term lawmaker as chief of staff
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Korean, Romanian leaders discuss defense tech, nuclear energy
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Medical standoff deepens as doctors reject new med school plan, talks
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[Graphic News] 77% of young Koreans still financially dependent
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[Herald Interview] Why Toss invited hackers to penetrate its system
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N. Korea sends economic delegation to Iran amid suspected military cooperation
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S. Korea calls on Japan to confront history amid Yasukuni Shrine visit
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S. Korean envoys convene to navigate strategy amid Middle East tensions
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최근 미국항공우주국 나사(NASA)는 인공위성을 통해 얻은 자료를 바탕으로 장기적으로 동향을 수집한 결과 오존홀 크기가 꾸준히 줄어들고 있다고 전했다.
나사는 “오존홀이 2040년이 되면 200만㎡ 이하로 줄어들고, 2040년이 되면 완전히 소멸할 것”이라고 전했다. 오존홀의 면적은 현재 3,100만㎢다.
오존홀은 오존층의 오존이 급격히 줄어든 영역을 가리키며 지금으로부터 30년 전 남극을 조사하던 영국 연구팀이 발견했다.
그동안 오존홀은 암을 유발하는 자외선의 방사선량을 늘려 건강에 큰 위험이 되는 것으로 알려져 세계 각국이 오존홀 소멸을 위해 애써왔다.
전문가들은 “오존홀의 의의는 인간이 얼마나 빨리 대기를 바꿔버릴 수 있는지, 자연을 회복시키려면 얼마나 많은 시간과 노력이 필요한지 알려줬다”고 인간의 환경 파괴에 대한 이기심을 지적했다.
(khnews@heraldcorp.com)
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