The troubled waters surrounding the Spratly Islands

New research reveals the unseen environmental damage being done to coral reefs in the hotly contested South China Sea, as China and other nations jostle for control of the disputed sea lanes.

Volcano F is the origin of 'floating stones'

Stones do not float in water—this is a truism. But there is hardly a rule without exception. In fact, some volcanic eruptions produce a very porous type of rock with a density so low that it does float: Pumice. An unusually ...

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