Glaciers can give us clues about when a volcano might erupt
Glaciers can give us clues about when a volcano might erupt: Mayumi.K.Photography/Shutterstock Globally, there is about one volcano erupting each week. Volcanic unrest kills an average of 500 people every year and costs the global economy roughly US$ 7 billion (£5.7 billion). With one in 20 people living somewhere at risk of volcanic activity, every …
