POPOCATÉPETL VOLCANO – In the predawn darkness, a team of scientists climbs the slope of Mexico's Popocatépetl volcano, one of the world’s most active and whose eruption could affect millions of ...
Deep beneath one of the United States’ most closely watched volcanoes, researchers see not only a source of risk but a vast reservoir of clean, constant heat. The idea is as audacious as it sounds: ...
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