A nameless lake that once lay in the Northwest territories of Canada has been recently destroyed in an astonishing display of the effects of global warming. In this cold area, permafrost is contained in icy headwalls that can be up to thirty meters thick. This permafrost, there since the last ice age, has begun melting en masse due to the heating of the earth's surface, and on July 15, the melted permafrost that once helped create the barrier of land that kept this lake contained gave way. Within two hours, 30,000 cubic meters of water was drained from the cliff side lake, and the lake's water plummeted over the nearby cliff and was lost.
As rainfall and temperatures have increased, "slumps" such as this have been occurring in a much higher frequency. Such events are yet more examples of the earth's changing climate, especially in terms of how the poles are badly affected - the melting of permafrost in mass amounts spells out major destruction for the rest of the earth. For example, similar landforms to the nameless lake, those with hilltop lake sediments, are found in Wisconsin, as well as other parts of the world. It is likely that they could all be lost over time in a similar way.
http://www.theglobeandmail.com/news/national/northwest-territories-lake-falls-off-cliff-in-sign-of-changing-climate/article27667016/
As rainfall and temperatures have increased, "slumps" such as this have been occurring in a much higher frequency. Such events are yet more examples of the earth's changing climate, especially in terms of how the poles are badly affected - the melting of permafrost in mass amounts spells out major destruction for the rest of the earth. For example, similar landforms to the nameless lake, those with hilltop lake sediments, are found in Wisconsin, as well as other parts of the world. It is likely that they could all be lost over time in a similar way.
http://www.theglobeandmail.com/news/national/northwest-territories-lake-falls-off-cliff-in-sign-of-changing-climate/article27667016/