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Joshua Chu-Tan: The science of preserving sight | TED Talk Josh...
As you get older, your eyes worsen and become susceptible to a disease called age-related macular degeneration -- the leading cause of blindness, with no cure in sight. Sharing the science of how y...
Al Roker, Al Gore, David Biello and Latif Nasser: The science of...
Floods, droughts, heat waves and cold blasts -- why is the weather becoming more extreme? Environmentalist and "America's weatherman" Al Roker discusses the link between climate change and disrupti...
Matt Walker: The surprising health benefits of dreaming | TED Ta...
When you fall asleep and start dreaming, you're actually doing very important work. According to sleep scientist Matt Walker, dreams act like a form of "overnight therapy." In fact, your dreams may...
Matt Walker: What is melatonin -- and should you take it to fall...
Melatonin is the hormone that tells our brains and bodies it's time to sleep. But if you think melatonin supplements will significantly improve your ability to fall asleep and stay asleep, you may ...
Maria Van Kerkhove: How to end the pandemic -- and prepare for t...
We will get out of this pandemic, says Maria Van Kerkhove, the COVID-19 Technical Lead of the World Health Organization (WHO). The question is how fast -- and if we'll take what we've learned from ...
Francisca Mutapi: Africans should lead on health care solution...
TED Fellow and global health researcher Francisca Mutapi discusses how COVID-19 responses borrowed from the West created significant obstacles for other public health programs in Africa -- and make...
Sandrine Dixson-Declève: 5 keys to shifting to a well-being eco...
In 1972, the Club of Rome, an organization of thought leaders from around the world, published their first "Limits to Growth" report, a foundational text warning the world of the consequences of hu...
Jim Hagemann Snabe: Dreams and details for a decarbonized future...
As chairman of the world's largest maritime shipping company, Jim Hagemann Snabe thinks a lot about how goods get where they need to go and the impact their journey has on the planet. Leading the e...
Gowri Shankar: A king cobra bite -- and a scientific discovery |...
A king cobra has enough venom to kill 10 people in a single bite. Recounting his near-death experience after being bitten by one of these majestic yet deadly snakes, conservationist and TED Fellow ...
Matt Walker: 4 ways the COVID-19 pandemic changed the way we sle...
Have you been having weird dreams lately? For many people, that's just one of the ways the COVID-19 pandemic has altered their sleeping habits, says sleep scientist Matt Walker. From when to how mu...
Emma Bryce: Why do cats have vertical pupils? | TED Talk エマ・...
Peering into the eyes of different animals, you'll see some extraordinarily shaped pupils. House cats, for one, are twilight hunters with vertically elongated pupils. Many grazing animals, like goa...
Sophia Kianni: Language shouldn't be a barrier to climate action...
Most scientific literature is written only in English, creating an alarming knowledge gap for the 75 percent of the world who don't speak it. That's a big problem for climate change -- because it's...
Axel Reinaud: How biochar removes CO2 from the air -- and helps ...
Biochar is a kind of charcoal that removes CO2 from the atmosphere, helping yield healthy crops and even producing abundant renewable energy in the form of electricity as it's made. This exciting c...
Gabrielle Walker: What you need to know about carbon removal | T...
What do woolly pigs have to do with climate change? They're part of a vital, ingenious and evolving strategy to take carbon out of the sky and store it safely -- in trees, soils, the ocean, buildin...
Li-Huei Tsai: Could we treat Alzheimer's with light and sound? |...
What if we could use brain waves to treat Alzheimer's? Professor and neuroscientist Li-Huei Tsai details a promising new approach to artificially stimulate gamma brain waves using light and sound t...
Katie McGinty: Smart solutions to decarbonize buildings | TED Ta...
Buildings are bad news for the climate -- the indoor spaces we spend most of our lives in emit 40 percent of the world's greenhouse gases. Rethinking how to create and occupy the spaces we inhabit,...
Lei Li: The incredible cancer-detecting potential of photoacoust...
Could we use the energy from light and sound to detect disease? TED Fellow Lei Li shares the exciting promise of photoacoustic imaging: an affordable, painless and accurate method of converting lig...
Dan Jørgensen: How wind energy could power Earth ... 18 times o...
Over the last two decades, the wind power industry has grown at a dizzying pace. (Fun fact: a single rotation from one of the world's most powerful wind turbines can generate enough electricity to ...
Mahendra Singhi: Cement's carbon problem -- and 2 ways to fix it...
Cement is vital to modernizing all kinds of infrastructure in the developing world -- but manufacturing it comes at an enormous environmental cost in the form of carbon emissions. Mahendra Singhi, ...
James Tanton: Can you survive the creation of the universe by so...
It's moments after the Big Bang and you're still reeling. You're a particle of matter, amidst a chaotic stew of forces, fusion, and annihilation. If you're lucky and avoid being destroyed by antima...