Introduction to Mental Accounting

Extras

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  Can Sleep Quality and Quantity be Boosted Using Sound?

  Scientists use sound to improve sleep.

  3:03
• 

  Can Bones Reveal How Dogs Evolved from Wolves?

  Learn more about the evolution of our furry companions.

  5:12
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  Plant Fossils Hint at Arctic's Swampy Past

  Learn more about a lush forest that once dominated the Arctic.

  3:02
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  What if Carbon Left Your Tailpipe as Solid Chunks?

  Together, all the cars on Earth would leave quite the pile of carbon behind—every day.

  2:12
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  What did the East Coast Look Like 3 Million Years Ago?

  Scientists dig up ancient clams from the ocean 90 miles from the nearest beach.

  3:21
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  How Carbon Dioxide Warms Planet Earth

  Carbon dioxide acts like a heat-trapping blanket, warming our planet.

  2:32
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  Why Trees Are Living Climate Records

  Trees have an environmental record etched into their very wood.

  1:29
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  A Bird's-Eye View of Carbon Emissions

  What if carbon dioxide pollution were solid carbon chunks?

  1:56
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  What’s Causing Greenland’s Biggest Glacier to Melt?

  Warming ocean water is eating away at Greenland's glaciers from below.

  2:04
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  Fifty Million Years Ago, the Arctic Was a Warm Swamp

  Drop yourself into a modern-day swamp, and that's what the ancient Arctic looked like.

  2:07