Thawing permafrost puts global climate warming in spotlight – Reuters Africa

Just centimeters below the Earth’s surface is a ticking time bomb that could detonate as global temperatures rise. It’s called permafrost.
Permafrost is found at high altitudes in mountains such as the Himalayas, the Andes and the Southern Alps of New Zealand, as well as at the poles in Antarctica and, especially, in the Arctic.
Permafrost is a lot like concrete. In permafrost, ice binds together soil, rocks, sand and organic matter. Some of that organic matter includes the remains of plants a…

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