Just over a century ago, an oil discovery near El Dorado in south-west Arkansas sparked a drilling frenzy that played a part in establishing the country as a global energy superpower. At its peak the ...

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As a major energy supplier, Xinjiang's Shitoumei No 1 Open-Pit Coal Mine, has emerged as a model of intelligent and green ...

The Xiaozhai Tiankeng stands as the textbook example of what happens when karst processes are given perfect working ...