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Is Permafrost the Climate Tipping Point of No Return?

Season 3 Episode 12 | 11m 49s

Arctic air is warming, causing scientists to worry that melting arctic ice and snow could also lead to a sudden permafrost thaw and release of carbon dioxide (CO2) and methane (CH4) that forms a climate tipping point or feedback loop. And the trigger temperature may be coming much sooner than expected.

Aired: 02/13/23
Extras
It's the finale and two rounds of cooking remain before one of the finalists gets named the winner.
Jodi is at the neighborhood concert and learns how she can use an outdoor bathroom there!
O imagines that he can go see all types of fairytale bathrooms!
Sienna goes to a festival with her family and learns to use the potty at a public event!
A song about how if you need to go potty someplace new, you can use a different bathroom.
Daniel learns all about how he can use the bathroom at the train station.
In week five, the home cooks have to make a dish from a family tradition and an heirloom recipe.
Mrs. C. and Jack prepare for a visit from Daniel’s parents. Meanwhile, Alphy confides in Geordie.
Alphy and Geordie clash over how to approach a murder case.
The home cooks step outside their comfort zones in two rounds of cooking.
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