“The way we cool things down is heating the planet even more,” says sustainable development expert Rachel Kyte -- and the solutions go well beyond just fixing air-conditioning. She identifies four major areas with transformative solutions -- from roofs

Short-sightedness may be the greatest threat to humanity, says conceptual artist Katie Paterson, whose work engages with deep time -- a concept that describes the history of the Earth over a time span of millions of years. In this lively talk, she take

American democracy cannot be great until it is good, says lawyer, Harvard professor and former governor of Massachusetts Deval Patrick. A self-identified patriot, Patrick stands behind the fundamental values and civic ideals that he believes make the U

With many women of color considering exiting the workforce due to unfair conditions, it's time to reshape systems in order to put an end to this massive loss of talent. Exposing the harmful repercussions of racist, toxic organizational cultures, so

Picking an outfit? Take inspiration from this thrilling talk about digital fashion: the new, weird and wonderful world of fashion designed for our virtual worlds. Watch as Gala Marija Vrbanic, a leader in this emerging field, showcases what you could w

Reflecting on his remarkable life and career, Nick Offerman (best known for his iconic portrayal of Ron Swanson on "Parks and Recreation") shares his insights on acting, marriage and the current state of the world. This is an episode of Desig

Supply chain challenges are real, but they're not new, says global trade expert Dustin Burke. In the face of disruptions ranging from natural disasters to pandemics, how do we make sure supply chains can keep up? Burke offers a combination of solut

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, buildings, rocks and deep underground. Every carbon removal ap

For the nearly 20 million Americans with a felony record, punishment doesn’t end after their prison sentence. Sociologist Reuben Jonathan Miller sheds light on the aftershocks of mass incarceration through the stories of people who’ve lived it, left it

Once considered the ugly duckling of environmental conservation, seagrass is emerging as a powerful tool for climate action. From drawing down carbon to filtering plastic pollution, marine scientist Carlos M. Duarte details the incredible things this o

Mothers undeniably impact and shape history -- but their stories are often left out or misrepresented, says sociologist and author Anna Malaika Tubbs. This erasure limits policies to support mothers and their essential roles in society. Citing the rema

Comics creator Sam Hester is part of a growing movement within health care: graphic medicine. In short, literally drawing attention to a patient's needs and goals with pictures to foster better and more accessible caretaking. Hester shares how illu

Bjørn Otto Sverdrup leads the Oil and Gas Climate Initiative (OCGI), which gathers the CEOs of twelve of the world’s largest oil and gas companies around an ambitious goal: to get one of the leading contributors to climate change to drastically lower t

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 climate change fighter is ready for scaling now. Ent

Cities designed like families can last for generations. Skeptical? Look to master architect Liu Thai Ker, who transformed Singapore into a modern marvel with his unique approach to sustainable urban design. Liu shares creative wisdom and perspective on

The freedom journey doesn’t end when someone is released from prison. In many ways, it begins. Attorney and entrepreneur Brittany K. Barnett fights to free people from prison and champions restoring and nurturing the creative ingenuity of justice-impac

Businesses need to stop cutting labor costs and start investing in people, says social impact investor Warren Valdmanis. In this perspective-shifting talk, he breaks down the essential ingredients of a "good" job -- which is more than just th

Whether you have one follower or a million, we've all witnessed nastiness and hate speech on social media. YouTube content creator and mental well-being motivator Peachy Liv advocates for a kinder, more respectful digital world -- and urges us all

Put down the cayenne-lemon water, and step away from the "diet" teas, says Dr. Jen Gunter. She's joined by a hepatologist who explains why these cleanses and "natural" detoxes can do more harm to your body (and bank account) tha

"What if I was to tell you that a game of peek-a-boo could change the world?" asks seven-year-old Molly Wright, one of the youngest-ever TED speakers. Breaking down the research-backed ways parents and caregivers can support children's he

"This chair is my legs -- this chair is my life," says accessibility champion Jane Velkovski, who uses a wheelchair after being diagnosed with Spinal Muscular Atrophy (SMA). With clarity and poise, he shares how his first motorized wheelchair

As a diver in the 1970s, marine ecologist Enric Sala saw once-lush oceanscapes reduced to underwater deserts -- but later, in marine preserves across the globe, he also witnessed the ocean's power to rejuvenate itself when left to its own natural d

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 Gowri Shankar shares the epiphany he had when the antiv

"I want all families to be made whole, to be reunified, to be together -- as is our right," says writer, poet and student Elizabeth Zion. In this profoundly moving talk, Zion shares the impacts of family separation, including her personal str

Vegan chef (and head chef of TED Countdown Summit) Derek Sarno is on a mission to unleash the mighty power of plants, creating nutritious food from mushrooms and vegetables that's full of texture and flavor -- and good for the planet. He dishes out

In this stunning spoken-word performance, poet and "freedom-forging futurist" Naima Penniman celebrates the wonders of the natural world and humanity's connection to it. "I wonder if the sun debates dawn some mornings," she says

Without the internet, how would you have coped with the pandemic -- from work and school, to maintaining your closest relationships? In the digital age, reliance on the internet is so common and seems ubiquitous, yet billions of people worldwide still

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 effort to decarbonize shipping by 2050, he shares a

Recently back from the COP26 UN climate conference in Scotland, former Icelandic presidential candidate Halla Tómasdóttir sums up the outcomes of the gathering, the progress she saw and the work that’s left to be done this way: “The most difficult work

Less than seven percent of people worldwide have a bachelor's degree -- and for many, this is simply because the cost of university is too high, says higher education executive Adrian K. Haugabrook. In this barrier-breaking talk, he introduces an i

From village to metropolis, global flooding is on the rise, and traditional approaches to managing the swells won't cut it, says water resource engineer Virginia Smith. Giving an overview of the dynamic shift needed to stymie the flow of future sto

From Siri to Alexa to Google, virtual assistants already permeate our lives. What will the next generation of these digital helpers look and sound like? Customer experience professional Karen Lellouche Tordjman gives us a glimpse of where they’re heade

TED Fellow Tom Osborn wants more young people to have access to the mental health support they need. With the Shamiri Institute, he and his team are training 18- to 22-year-olds to deliver evidence-based mental health care to their peers in Kenya -- wh

By 2100, the UN estimates that the world’s population will grow to just over 11 billion people. Architect Vishaan Chakrabarti wants us to start thinking about how we’ll house all these people -- and how new construction can fight climate change rather

What if we treated the risk of pandemics the same way we treat the risk of fires? In this eye-opening talk, infectious disease epidemiologist Jennifer B. Nuzzo unpacks how the Great Baltimore Fire of 1904 sparked a cultural shift in how we defend again

Many companies have made strides when it comes to prioritizing diversity, equity, and inclusion (DEI), but one group remains largely left out: people who have been involved in the criminal justice system. Social impact investor Nyra Jordan introduces u

For children growing up in refugee camps, education is a powerful tool of liberation. In this inspiring talk, Makhtoum Abdalla, displaced as a child in Sudan and now living with his family in the Otash camp in Darfur, shares his biggest dream: to ensur

Memory foam, air purifiers, scratch-resistant lenses: these are just a few of the everyday items originally developed for space missions. Aerospace engineer Eric Hinterman invites us to dream big and imagine what technological advancements could come n

Roe v. Wade, the landmark 1973 Supreme Court decision protecting people’s right to have an abortion in the United States, will be overturned within a year, says reproductive rights attorney Kathryn Kolbert. In this electrifying call to action, she brea

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 the past two years and apply it to the next emerging pa

There’s been explosive investment in new technologies aimed at decarbonizing the planet. But climate investor Dawn Lippert says something key is missing from this strategy: investment in the local people these solutions would most affect. She shares ho

In this deeply moving talk, educator Shabana Basij-Rasikh shares the harrowing story of evacuating more than 250 students, staff and family members from the School of Leadership, Afghanistan (SOLA) -- the country’s first and only all-girls boarding sch

Kindness can go a long way when it comes to reshaping a business. Having saved a fashion company from the brink of bankruptcy, entrepreneur James Rhee shares the value of investing in a culture of compassion at work -- and shows why we should all lead

When it comes to big problems like climate change, we tend to focus on big solutions -- but many of the best ideas come from people on the ground, facing day-to-day conservation battles. Sharing her effort to protect the Leseur ecosystem in Indonesia (

The doctrine of “first, do no harm” is the basis of the Hippocratic Oath, one of the world’s oldest codes of ethics. It governs the work of physicians -- but climate and health campaigner Shweta Narayan says it should go further. In this essential talk

For thousands of years, the Amazon rainforest has provided food, water and spiritual connection for its Indigenous inhabitants and the world. But the endless extraction of its natural resources by oil companies and others is destroying the lives of tho

"How much more damage do we have to endure before we realize that it's cheaper to save this planet than to ruin it?" asks engineer and investor John Doerr. In conversation with Countdown cofounder Lindsay Levin, Doerr and systems innovato

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 your vision works, researcher Joshua Chu-Tan offers brea

We’ve been hearing about self-driving cars for years, but autonomous vehicle entrepreneur Aicha Evans thinks we need to dream more daringly. In this exciting talk, she introduces us to robotaxis: fully autonomous, eco-friendly shuttles that would take

TED Fellow and education innovator Larry Irvin envisions a world where every child can see themselves reflected in their teachers. With his team at Brothers Empowered to Teach, Irvin is providing pathways to careers in education for Black men, who curr