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PBS News Hour

What is Liquefaction?

Hari asks Kirk Johnson, what is liquefaction, and how could it have snuffed out an entire population of ice age mastedons?
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December 12, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 346
December 12, 2025 - PBS News Hour full episode
December 12, 2025 - PBS News Hour full episode
December 11, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 345
December 11, 2025 - PBS News Hour full episode
December 11, 2025 - PBS News Hour full episode
December 10, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 344
December 10, 2025 - PBS News Hour full episode
December 10, 2025 - PBS News Hour full episode
December 9, 2025 - PBS News Hour full episode
56:45
Season 2025 Episode 343
December 9, 2025 - PBS News Hour full episode
December 9, 2025 - PBS News Hour full episode
December 8, 2025 - PBS News Hour full episode
56:45
Season 2025 Episode 342
December 8, 2025 - PBS News Hour full episode
December 8, 2025 - PBS News Hour full episode
December 7, 2025 - PBS News Weekend full episode
24:09
Season 2025 Episode 341
December 7, 2025 - PBS News Weekend full episode
December 7, 2025 - PBS News Weekend full episode
December 6, 2025 - PBS News Weekend full episode
24:09
Season 2025 Episode 340
December 6, 2025 - PBS News Weekend full episode
December 6, 2025 - PBS News Weekend full episode
December 5, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 339
December 5, 2025 - PBS News Hour full episode
December 5, 2025 - PBS News Hour full episode
December 4, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 338
December 4, 2025 - PBS News Hour full episode
December 4, 2025 - PBS News Hour full episode
December 3, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 337
December 3, 2025 - PBS News Hour full episode
December 3, 2025 - PBS News Hour full episode
December 2, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 336
December 2, 2025 - PBS News Hour full episode
December 2, 2025 - PBS News Hour full episode
December 1, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 335
December 1, 2025 - PBS News Hour full episode
December 1, 2025 - PBS News Hour full episode
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