Why Do Redwoods Grow THIS Tall?

From PBS Terra. Ever wonder why redwoods, which can grow over 300 feet tall, are so much taller than other trees? These massive trees predate human existence by about 135 million years and have mastered how to survive. Catch up on episodes of Untold Earth on PBS Terra!

What’s up with these bizarre land forms?

From PBS Terra. Humans have left behind some strange footprints on the face of our planet. From checkerboard forests to terraces to man-made oases. Check out more episodes of Overview on PBS Terra. Hosted by Joe Hanson from Be Smart, Overview uses stunning 4k drone footage to reveal the natural and human made marvels shaping…

How We Know The AMOC Will Collapse Again

From PBS Terra. In a new AMOC study, scientists took thousands of ice samples and found that the AMOC collapsed 25 times during the last ice age, or once every 5,000 years. And the last collapse was 12,000 years ago…. Although we aren’t in an ice age anymore, we now know that the AMOC is…

How Louisiana’s Mega Swamp Breaks Hurricanes

From PBS Terra. In the Atchafalaya Basin—the largest river swamp in the U.S.—ancient cypress trees act as natural barriers against hurricanes and extreme weather. Spanning a million acres, these nearly indestructible trees have protected Louisiana’s coast for thousands of years. How does this million-acre ecosystem protect Louisiana’s communities, and how can we protect it? Untold…

We figured out why it’s been so hot

From PBS Terra. The last two years were hot. In fact, 2024 was officially measured as the hottest year on record. But we only recently figured out why. In this video Weathered’s Maiya May explains how cloud seeding works and how external factors affect it. ***** PBS Member Stations rely on viewers like you. To…

Is This Earth’s Most Treacherous Coastline?

From PBS Terra. The Outer Banks, known as the "Graveyard of the Atlantic," is home to thousands of shipwrecks, including Blackbeard’s infamous Queen Anne’s Revenge. But beyond the maritime history, this fragile coastline is rapidly changing—threatened by shifting sands, rising seas, and intensifying storms that could reshape it forever. ***** PBS Member Stations rely on…

How Did This Giant Rock Actually Form?

From PBS Terra. Devil’s Tower has stood tall in the Wyoming Plains for over 50 million years, becoming a cultural landmark for American Indians and a source of human fascination. But how did this massive rock actually form? Be sure to catch up on new episodes of Untold Earth now on PBS Terra!

The World’s Largest Iceberg Is On The Move

From PBS Terra. The world’s largest iceberg: named A23a, is on the move. After breaking free from its Antarctic origin, the iceberg roughly the size of Rhode Island is approaching South Georgia Island. Weathered’s Maiya May explains what this means for ecosystems and the climate in general. ***** PBS Member Stations rely on viewers like…

What Causes These Mind-Bending Waves?

From PBS Terra. The Qiantang River in China is home to one of the most dramatic tidal bores in the world, where incoming tides create massive waves that collide, split, and interfere with each other, forming mesmerizing, seemingly unreal patterns. ***** PBS Member Stations rely on viewers like you. To support your local station, go…

This Is Not a Forest

From PBS Terra. Pando, Latin for ‘I spread,’ appears to be a forest but is actually one massive tree. Weighing 13 million pounds, Pando is one of the world’s largest living organisms. It has thrived in Utah’s Fishlake National Forest, spreading across 106 acres with 47,000 stems. Find out how human intervention has both threatened…

What La Niña Will Do to Our Weather in 2025?

From PBS Terra. 2024 was recently declared the hottest year on record. But we’re now likely to experience a cooling trend. Does this mean global warming is reversing? (Spoiler: no, it does not). Weathered’s Maiya May explains how El Niño and La Niña affect global temperatures, and what we can expect for the next few…

Why Crocodiles Are Thriving in the Shadow of A Nuclear Plant

From PBS Terra. Florida’s native crocodiles have found an unexpected sanctuary in the cooling canals at Turkey Point Nuclear Power Plant. This fortunate happenstance, along with tireless conservation efforts, are helping these once endangered predators make a remarkable comeback. ***** PBS Member Stations rely on viewers like you. To support your local station, go to:…

Biologically speaking, how many types of hair are there?

From PBS Terra. Tina Lasisi breaks down the science of hair. "Why Am I Like This?" is a show hosted by biological anthropologist Tina Lasisi, and produced by STEMedia, that dives deep into evolutionary biology to explain some of our existentialism or everyday questions about our body. Subscribe to PBS Terra so you never miss…

Wait, it’s all Canadian shield?

From PBS Terra. Why does Canada have so much bizarre terrain and so, so many lakes? This is the geology behind the ancient, rugged landscape of the Canadian Shield. Check out more episodes of Overview on PBS Terra. Hosted by Joe Hanson from Be Smart, Overview uses stunning 4k drone footage to reveal the natural…

When Will We Stop Moving to the Riskiest Regions?

From PBS Terra. For the last 50 years, Americans have flocked to the warm, sunny South. But, as climate change makes extreme heat, hurricanes, wildfire and flooding worse, will that trend ever STOP? Well, some regions might just be showing signs of a reversal, and they hold lessons for what other areas might expect as…

How do we measure skin color?

From PBS Terra. Tina Lasisi describes how researchers measure skin color data to build a "melanin index" "Why Am I Like This?" is a show hosted by biological anthropologist Tina Lasisi, and produced by STEMedia, that dives deep into evolutionary biology to explain some of our existentialism or everyday questions about our body. Subscribe to…

The Real Reason California Is Burning

From PBS Terra. The Palisades, Eaton, Hurst, and Kenneth fires in the greater Los Angeles area have already caused catastrophic damage and loss of life. They also figure to be the most expensive in terms of property damage in California, and even US history. What caused these fires? Why are they happening during what’s typically…

The world is warming, so why is the US so cold right now?

From PBS Terra. It’s been a cold January for many in the US, and now Winter Storm Blair has left a swath of snow and ice across the country. But how is this possible with global temperatures at record highs? Weathered’s Maiya May explains how warming Arctic temperatures disrupt the polar vortex, bringing frigid temperatures…

Animals don’t tend to have baby fat, so why do humans?

From PBS Terra. Human babies are especially chonky relative to other animal species. But why? Tina Lasisi explains the science of adiposity. "Why Am I Like This?" is a show hosted by biological anthropologist Tina Lasisi, and produced by STEMedia, that dives deep into evolutionary biology to explain some of our existentialism or everyday questions…

How do they create skin color maps?

From PBS Terra. Tina Lasisi discusses how skin maps measure and map melanin levels around the world. "Why Am I Like This?" is a show hosted by biological anthropologist Tina Lasisi, and produced by STEMedia, that dives deep into evolutionary biology to explain some of our existentialism or everyday questions about our body. Subscribe to…