Here are some obscure substances that we couldn't do without.
The gem is second in size only to the Cullinan diamond unearthed in South Africa in 1905.
Here are some spots on the planet where humans have really dug in.
A new map shows nearly 65,000 inactive mines--but many more are out there, posing environmental hazards.
One spectacular toxic mine waste leak in Colorado is just the tip of the proverbial iceberg. Continue reading →
Nations are trying to stake claims to mineral and energy wealth at the top of the world. Continue reading →
Prehistoric animal tracks in Angola show that a raccoon-size animal, crocodile and dinosaur all drank at the same shallow lake 118 million years ago.
Coal miners have been digging what German environmentalists decry as 'Europe's biggest hole' at Hambach in the Lower Rhine basin. It covers 50 square miles. Continue reading →
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