As they span significant areas of Asia, Europe and the Americas, karst landscapes cover some 15 percent of the Earth’s land mass. Scientists estimate that these areas of porous bedrock are home to as many as 1.5 billion people, a quarter of the global population.
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About Hannah Nester
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Entries by Hannah Nester
Despite an estimated $US 600 billion in Nigerian oil revenue since its discovery in 1956, wealth does not trickle downstream, as many villages in the Niger Delta lack electricity and running water.