The potential economic impact of volcano alerts

The Volcano Alert Level (VAL) system, standardized by the United States Geological Survey (USGS) in 2006, is meant to save lives and keep citizens living in the shadow of an active volcano informed of their current level ...

How will humans survive a global catastrophe?

One suggested way to save humankind in the event of a deadly pandemic or other extreme global catastrophe is establishing a safe refuge—on an island or in such far-out places as the moon or under water—where a portion ...

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