On August 26, the side of a mountain near the border between Nepal and Tibet collapsed. Seven billion cubic feet of glacial ice and rock, enough to fill 100 football stadiums, crashed roughly a mile straight down into the river below. The impact created a muddy wall of water that swept through the valley as fast as 100 miles per hour, destroying villages dozens of miles downstream and killing more than 1,300 people. Thousands more remain missing.
The scale of the disaster is extraordinary, even for a region accustomed to deadly floods and landslides. It will take months for scientists to confirm exactly what happened. But, they warn, one thing is already clear: As climate change melts icy landscapes worldwide, tragedies like this are more likely to happen. They are also incredibly hard to predict.
“Glacial loss destabilizes slopes in many far-reaching ways that are often unpredictable and catastrophic,” said Mark Carey, a professor of environmental studies and geography at the University of Oregon who ... Read more