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Using Drones to Solve 170-Year Bowhead Whale Mystery

Using Drones to Solve 170-Year Bowhead Whale Mystery

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3:00
This Little Armadillo Was a Big Ambassador for His Species

This Little Armadillo Was a Big Ambassador for His Species

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3:51
Why Trees Are Living Climate Records

Why Trees Are Living Climate Records

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1:29
Plant Fossils Hint at Arctic's Swampy Past

Plant Fossils Hint at Arctic's Swampy Past

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3:02
What did the East Coast Look Like 3 Million Years Ago?

What did the East Coast Look Like 3 Million Years Ago?

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3:21
How Climate Has Shifted Over Millions of Years

How Climate Has Shifted Over Millions of Years

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2:44
This Canadian Cave Has Been Frozen Since the Last Ice Age

This Canadian Cave Has Been Frozen Since the Last Ice Age

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3:11
Fifty Million Years Ago, the Arctic Was a Warm Swamp

Fifty Million Years Ago, the Arctic Was a Warm Swamp

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2:07
A Bird's-Eye View of Carbon Emissions

A Bird's-Eye View of Carbon Emissions

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1:56
What if Carbon Left Your Tailpipe as Solid Chunks?

What if Carbon Left Your Tailpipe as Solid Chunks?

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2:12
How Carbon Dioxide Warms Planet Earth

How Carbon Dioxide Warms Planet Earth

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2:32
What’s Causing Greenland’s Biggest Glacier to Melt?

What’s Causing Greenland’s Biggest Glacier to Melt?

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2:04
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NOVA

Taking Orders to Be Violent Might be Easier Than You Think

The Milgram Shock Experiment suggests that when an authority figure makes an order, even if seemingly violent, most people will carry it through.