Billions in Change • 2015

25:43

It's amazing to think that in the 1900s a mere tenth of the world's population lived and worked in cities. Now it is over half. With soaring populations, how will we keep our cities live-able? And what will the city of tomorrow look like?

4/10 • Catalyst: Season 1 • 2015 • Environment

46:12

A look at scientists' claims about human contribution to global warming, and how statistician Leonard Tippet's investigation into snapping cotton threads helps predict extreme weather.

S1E2 • Climate Change by the Numbers • 2016 • Environment

51:00

When you soar above Yellowstone, it's easy to see why it became the world's first national park in 1872. It's a place of staggering beauty and fragile creatures, of stunning granite peaks that pierce the sky and colorful springs that may hold secrets about the origins of life. This aerial voyage takes you over high elevation lakes, snaking canyons, sputtering hot geysers, and snow-covered landscapes. Explore Yellowstone's history of Native Americans, European explorers, and 10 million years of tectonic upheaval.

2018 • Environment

4:51

Earthquakes have always been a terrifying phenomenon, and they’ve become more deadly as our cities have grown — with collapsing buildings posing one of the largest risks. But why do buildings collapse in an earthquake? And how can it be prevented? Vicki V. May explains the physics of why it is not the sturdiest buildings, but the smartest, that will remain standing.

TED-Ed • Environment

41:41

Explorer Victor Vescovo and his team head to the Indian Ocean.

S1E3 • Expedition: Deep Ocean • 2021 • Environment

58:58

Witness the birth, growth and death of an island in the greatest ocean on Earth.

S1E4 • South Pacific • Environment