"Sonia Nagorski"

The devastation of Nov. 22, 1936 may hold important lessons for a future where landslides could be even more common.

Researchers estimate that soot, or black carbon, pollution in the most popular and accessible part of Antarctica is causing an extra inch of snowpack shrinkage every year.

When all that rock fell, it shook the earth equivalent to a magnitude 2.8 or 2.9 earthquake.