Name: The Incredible Journey of the Butterflies
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Canada

Mexico

United States

Northern Mariana Islands

Puerto Rico

American Samoa

Guam

U.S. Virgin Islands

U.S. Minor Outlying Islands

US, US Territories, Canada, Mexico

Follow the 2,000-mile migration of monarchs to a sanctuary in the highlands of Mexico.

The Incredible Journey of the Butterflies

Incredible Journey of the Butterflies

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US, US Territories, Canada

US & Territories

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. What are the implications of these dramatic developments in the Arctic? Scientists and local communities alike are struggling to grasp the scale of the methane threat and what it means for our climate future. (Premiered February 2, 2022)

In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate.

Arctic Sinkholes

Perfectly round ball of brown ice cream on a spoon against white background

Sixty years ago a teenager’s homemade ice cream raised a surprisingly complicated question: Can hot liquids freeze faster than cold ones?

The ice cream that changed physics

Two tusked mastodons walk through a puddle in a lush green landscape with geese and a hare, as the sun sits on the horizon

An artist’s impression of the Kap København formation 2 million years ago, when the temperature was significantly warmer than northernmost Greenland today. Image Credit: Beth Zaiken

The oldest DNA ever retrieved, preserved in sediments in northern Greenland, reveals that Arctic and temperate species once commingled in an ecosystem unlike anything that exists today.

The Incredible Journey of the Butterflies

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