Arctic Sinkholes Preview
Season 49
Episode 1
About the Episode
Colossal explosions shake a remote corner of the Siberian tundra, leaving behind massive craters. In Alaska, a huge lake erupts with bubbles of inflammable gas. Scientists are discovering that these mystifying phenomena add up to a ticking time bomb, as long-frozen permafrost melts and releases vast amounts of methane, a potent greenhouse gas.
Aired:
| Expires: | Runtime: 30s
Recent Episodes
-
Episode 17, Season 51<br> Building Stuff: Change It!
From electric flight to artificial noses, engineers are finding new ways to preserve our planet.| 53:40 -
Episode 16, Season 51<br> Building Stuff: Reach It!
Humans are born to roam. See how engineers are inventing new ways to explore and extend our range.| 53:40
Extras
-
-
Legacy of the Land
Native American communities share their culture and knowledge to address climate change. -
Harvesting the Future
Ak-chin farming makes desert agriculture possible, and now, those practices help communities today.9:22 -
Megadroughts and Indigenous Voices
The Southwest is in a megadrought, but Native Americans have survived them before.7:51 -
Standing the Heat
Reintroducing the hogan, an earthen Navajo structure that stays cool in the summers without AC.8:44 -
Tides of Tradition
Following a local Unangax̂ hunter, hear the realities of food access in the changing Arctic.9:47 -
Keepers of the Coastline
In Northern California, Marine science is guided by Tolowa Dee-ni' Nation’s community and culture.11:56 -
Sands of Time
Using photo archives and ancestral knowledge, witness coastal erosion in Bristol Bay, Alaska.6:47 -
What Did Dinosaurs in Alaska Eat During Winter?
During the winter months, food for the plant eaters would have withered or died.2:36 -
