Are Global Warming, Volcanoes and Earthquakes Linked?
Background and Clarification: A thaw of ice caps caused by global warming may trigger more volcanic eruptions in coming decades by removing a vast weight and freeing magma from deep below ground, research suggests. Eventually there will be either somewhat larger eruptions or more frequent eruptions in coming decades. The end of the Ice Age 10,000 years ago coincided with a surge in volcanic activity in Iceland, apparently because huge ice caps thinned and the land rose. Climate chaos could also trigger volcanic eruptions or earthquakes in places such as Mount Erebus in Antarctica, the Aleutian islands of Alaska or Patagonia in South America. Scientists at NASA and United States Geological Survey (USGS) are using satellite and global positioning system receivers, as well as computer models, to study movements of Earth’s plates and shrinking glaciers in southern Alaska. Glaciers are very sensitive to climate chaos. Higher temperatures and changes in precipitation over the last century ap