Study: Melting Ice Sheet Will Raise Sea Level 10 Inches

The Associated Press reports:

Zombie ice from the massive Greenland ice sheet will eventually raise global sea level by at least 10 inches (27 centimeters) on its own, according to a study released Monday. Zombie or doomed ice is ice that is still attached to thicker areas of ice, but is no longer getting fed by those larger glaciers.

That’s because the parent glaciers are getting less replenishing snow. Meanwhile the doomed ice is melting from climate change, said study co-author William Colgan, a glaciologist at the Geological Survey of Denmark and Greenland.

“It’s dead ice. It’s just going to melt and disappear from the ice sheet,” Colgan said in an interview. “This ice has been consigned to the ocean, regardless of what climate (emissions) scenario we take now.”

The Washington Post reports:



A one-foot rise in global sea levels would have severe consequences. If the sea level along the U.S. coasts rose by an average of 10 to 12 inches by 2050, a recent report from NOAA found, the most destructive floods would take place five times as often, and moderate floods would become 10 times as frequent.

Other countries — low-lying island nations and developing ones, like Bangladesh — are even more vulnerable. These nations, which have done little to fuel the higher temperatures that are now thawing the Greenland ice sheet, lack the billions of dollars it will take to adapt to rising seas.