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As rising temperatures shrink glaciers, melt water can collect to form lakes nearby which could put about 15 million people in high mountains at risk of glacial lake outburst floods, according to a study published on Wednesday.
These lakes are a significant natural hazard for people living downstream, because outburst floods can occur suddenly with the failure of a natural dam, said a new research published in Nature by New Zealand and international researchers.
The study has found that those living in High Mountains Asia and the Andes are the most exposed to this danger, and the areas with dense populations and less resources to cope are most at risk.
Glacial lake outburst floods can happen without warning when a natural dam fails, which requires urgent attention to minimize future loss of life, said University of Canterbury School of Earth and Environment Senior Lecturer Thomas Robinson.
Since 1990, glacial lakes have grown rapidly in number and size and 15 million people globally are currently exposed to impacts from potential glacial lake outburst floods, he said.
"People in High Mountains Asia are most exposed and on average live closest to glacial lakes, with about 1 million people living within 10 kilometers of a glacial lake," he added.
Robinson said it is important to work closely with the exposed communities identified in the study to prevent major disasters.
(Cover image via CFP)
(If you want to contribute and have specific expertise, please contact us at nature@cgtn.com.)
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Disinformation report hotline: 010-85061466