非洲喀麦隆的尼俄斯湖是个臭名昭著的“杀人湖”，曾造成湖岸附近村庄成百上千的人突然死亡。科学家经过不懈努力，终于找到了罪魁祸首——埋藏于湖底的二氧化碳。正是尼俄斯湖突然释放出大量的二氧化碳，造成附近村落大批人畜窒息而死。无独有偶，俄罗斯西伯利亚地区也有个可 Niños Lake in Cameroon, Africa, is a notorious “killing lake” that caused the sudden death of hundreds of people in the village near the lakeshore. After unremitting efforts, scientists finally found the culprit - carbon dioxide buried in the bottom of the lake. It was the sudden release of large amounts of carbon dioxide from Lake Niño, which caused a large number of people and animals in nearby villages to suffocate. Similarly, there is also a