Study Finds Doomsday Glacier Shrinking Faster Than Expected

If it collapses, scientists say, global sea level could increase several feet and put coastlines at risk of destruction.

It's known as "the doomsday glacier," and scientists are growing more concerned about it.

The Thwaites Glacier in Antarctica is one of the largest on earth and is larger than the state of Florida.

According to a new study published in the journal Nature Geoscience, scientists say sometime in the last 200 years the base of the glacier re-treated twice as much as observed in the last ten years.