Visiting the most vulnerable place on Earth: the 'doomsday glacier'

The Thwaites Glacier is the largest, most menacing source of rising sea levels all over the world, and it is melting at an alarming rate. For years, scientists have warily watched it from afar, but in November, a team set out on a perilous journey to investigate what is happening below. Science correspondent Miles O’Brien reports on what they discovered.
Stream your PBS favorites with the PBS app: to.pbs.org/2Jb...
Find more from PBS NewsHour at www.pbs.org/ne...
Subscribe to our KZbin channel: bit.ly/2HfsCD6
Follow us:
Facebook: www.pbs.org/new...
Twitter: / newshour
Instagram: / newshour
Subscribe:
PBS NewsHour podcasts: www.pbs.org/ne...
Newsletters: www.pbs.org/ne...