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17 December 2012
One moment, a block of ice about the size of a 15-passenger van plummets from the edge of a melting glacier to the water below. Seconds later, seismic vibrations shake the glacier and surrounding rock. For years, scientists have been puzzled over why glaciers quake while losing ice. Now, a new study has uncovered how the icequakes and ice loss are connected, which may help glaciologists and climate scientists track retreating ice throughout the Arctic.
7 December 2011
Glacier motion is not always graceful motion. Some glaciers are downright jerky, slipping along in fitful bursts. To better understand the process, scientists are studying ice streams: regions of ice that move faster than their surroundings.
14 December 2010
I always thought volcanoes belched flaming, crackling chunks of rock, oozed hot goopy magma, and buried everything on their slopes. So when I noticed several presentations on AGU’s schedule about “ice volcanoes,”–like P22A: Titan: The methane cycle and potential for watery warm spots 1 I was intrigued.