They braved the cold so you don't have to.

Science columnist Lee Hotz describes a remarkable project at WAIS Divide, Antarctica, where a hardy team are drilling into ten-thousand-year-old ice to extract vital data on our changing climate.

Antarctica is a vast and dynamic place, but radar technologies -- from World War II-era film to state-of-the-art miniaturized sensors -- are enabling scientists to observe and understand changes beneath the continent's ice in unprecedented detail. Join radio glaciologist Dustin Schroeder on a flight high above Antarctica and see how ice-penetrat...

Daryl Hannah gathers TED Talks that span the globe, from the Black Hills Mountains of the United States to the underwater worlds of Antarctica.

How can you tell the two poles apart? Where are the penguins? What about the bears? The Arctic pole is located in the Northern Hemisphere within the deep Arctic Ocean, while the Antarctic pole is smack in the middle of the ice-covered Antarctica. Camille Seaman describes how enterprising people and organisms have found ways to reside around both...

The vast, white surface of Antarctica stretches for over 3 million square kilometers. On the coast of this expanse, just a few meters beneath the ice, lies a remarkably diverse realm that is home to over 8,000 species of sea denizens who rely on an arsenal of otherworldly traits to survive. So how do these species not only live, but thrive, in s...

2041 will be a pivotal year for our planet. That year will mark the end of a 50-year agreement to keep Antarctica, the Earth's last pristine continent, free of exploitation. Explorer Robert Swan — the first person to walk both the North and South Poles — is on a mission to ensure that we extend that treaty. With passion and vigor, he pleads with...

This year, explorer Ben Saunders attempted his most ambitious trek yet. He set out to complete Captain Robert Falcon Scott's failed 1912 polar expedition — a four-month, 1,800-mile round trip journey from the edge of Antarctica to the South Pole and back. In the first talk given after his adventure, just five weeks after his return, Saunders off...

Extreme runner Ray Zahab shares an enthusiastic account of his record-breaking trek on foot to the South Pole -- a 33-day sprint through the snow.

Dive into the deep with open water swimmer Bhakti Sharma, as she shares what she learned about resilience during her personal journey from the scorching heat of Rajasthan, India to the bone-chilling waters of her record-breaking swim in Antarctica and her courageous crossing of the English Channel. "In the middle of the ocean, there is nowhere t...

There are more than 2,000 firefly species, found on every continent except for Antarctica — an astonishing diversity of movement and light. Firefly scientist Wan Faridah Akmal Jusoh explores the mysteries of these little beetles that light up the night and details her quest to discover and protect new species as their habitats are at risk of dis...

Explorer Ben Saunders wants you to go outside! Not because it’s always pleasant and happy, but because that’s where the meat of life is, “the juice that we can suck out of our hours and days.” Saunders’ next outdoor excursion? To try to be the first in the world to walk from the coast of Antarctica to the South Pole and back again.

The coldest materials in the world aren't in Antarctica or at the top of Mount Everest. They're in physics labs: clouds of gases held just fractions of a degree above absolute zero. Lina Marieth Hoyos explains how temperatures this low give scientists a window into the inner workings of matter, and allow engineers to build incredibly sensitive i...

Rob Dunbar hunts for data on our climate from 12,000 years ago, finding clues inside ancient seabeds and corals and inside ice sheets. His work is vital in setting baselines for fixing our current climate -- and in tracking the rise of deadly ocean acidification.

"Anything that is worth pursuing is going to require us to suffer, just a little bit," says surf photographer Chris Burkard, as he explains his obsession with the coldest, choppiest, most isolated beaches on earth. With jawdropping photos and stories of places few humans have ever seen -- much less surfed -- he draws us into his "personal crusad...

In this tour of the microscopic world, explorer and artist Ariel Waldman introduces the charismatic creatures lurking beneath Antarctica's massive ice sheet, the largest on earth. From "cuddly" water bears to geometric algae made of glass, Waldman shows how this seemingly barren landmass is actually a polar oasis of life -- if we just know where...

Rob Dunbar looks deeply at ancient corals and sediments to study how the climate and the oceans have shifted over the past 50 to 12,000 years -- and how the Antarctic ecosystem is changing right now.

By 2050, it will take 100 billion land animals to provide the world's population with meat, dairy, eggs and leather goods. Maintaining this herd will take a huge, potentially unsustainable toll on the planet. What if there were a different way? In this eye-opening talk, tissue engineering advocate Andras Forgacs argues that biofabricating meat a...

Warning signs of advancing climate change abound. Extreme weather, scarcity, and the rising cost of commodities foreshadow what might be ahead. Can we alter this perilous trajectory? Andrew Winston thinks we can, but to do so we must fundamentally shift the way business functions.

As businesses struggle to retain young talent, Gen Z is frequently accused of being a uniquely fickle cohort of workers. Economics student Andrei Adams sets the record straight by addressing common misperceptions about his generation and providing three actionable strategies for employers on getting them to stick around.

What is it like to raise a child who's different from you in some fundamental way (like a prodigy, or a differently abled kid, or a criminal)? In this quietly moving talk, writer Andrew Solomon shares what he learned from talking to dozens of parents -- asking them: What's the line between unconditional love and unconditional acceptance?

Search engines have become our most trusted sources of information and arbiters of truth. But can we ever get an unbiased search result? Swedish author and journalist Andreas Ekström argues that such a thing is a philosophical impossibility. In this thoughtful talk, he calls on us to strengthen the bonds between technology and the humanities, an...

How can we measure what makes a school system work? Andreas Schleicher walks us through the PISA test, a global measurement that ranks countries against one another -- then uses that same data to help schools improve. Watch to find out where your country stacks up, and learn the single factor that makes some systems outperform others.

Imagine, for a second, a duck teaching a French class. A ping-pong match in orbit around a black hole. A dolphin balancing a pineapple. You probably haven't actually seen any of these things. But you could imagine them instantly. How does your brain produce an image of something you've never seen? Andrey Vyshedskiy details the neuroscience of im...

When a squirrel chewed through a cable and knocked him offline, journalist Andrew Blum started wondering what the Internet was really made of. So he set out to go see it -- the underwater cables, secret switches and other physical bits that make up the net.

Why do we often wait so long to recognize each other's gifts? Why are the truest compliments for the people we love often said only after they're no longer around to hear and savor them? Andrea Driessen makes the case for writing eulogies for the living, sharing the power of "Gracenotes" to offer connection on a deeper level and dispel any regre...

What would happen to humanity if generosity went viral? Sharing transformative stories from around the world, head of TED Chris Anderson outlines why the time has come for the internet to realize its power to supercharge small acts of kindness, changing lives at a scale never experienced before. Learn how to cultivate a generous mindset — with o...

The electoral system in the United States needs a redesign, says political reformer Andrew Yang. Exposing the flaws of a system built on poor incentives, he proposes a cost-effective overhaul inspired by primary elections already working in places like Alaska and advocates for ranked-choice voting, where voters can choose candidates in order of ...

Sarah J. Doherty is a senior research scientist and associate professor at the University of Washington, where she is program director of the Marine Cloud Brightening research program.

Lake Maracaibo is the stormiest place on the planet. Thunderstorms rage above this massive body of water for up to 200 days of the year, with each ear-splitting event lasting for several hours. But why? Graeme Anderson lists the factors that create Lake Maracaibo's seemingly ever-lasting storms. [Directed by D. Lee Peffer II, narrated by Addison...