At his carpet company, Ray Anderson has increased sales and doubled profits while turning the traditional "take / make / waste" industrial system on its head. In a gentle, understated way, he shares a powerful vision for sustainable commerce.

Earth, humanity and nature are inextricably interconnected. To restore us all back to health, we need to "rewild" the world, says environmental activist Kristine Tompkins. Tracing her life from Patagonia CEO to passionate conservationist, she shares how she has helped to establish national parks across millions of acres of land (and sea) in Sout...

Have we used up all our resources? Have we filled up all the livable space on Earth? Paul Gilding suggests we have, and the possibility of devastating consequences, in a talk that's equal parts terrifying and, oddly, hopeful.

A decade ago, Robin Chase founded Zipcar in the US, now the largest car-sharing company in the world. Now she's exploring the next level of car-sharing: Buzzcar, a French startup that lets people rent their own cars to others. The details are fascinating (how does insurance work, exactly?), and the larger vision (she calls it Peers, Inc.) points...

Iqbal Quadir tells how his experiences as a kid in poor Bangladesh, and later as a banker in New York, led him to start a mobile phone operator connecting 80 million rural Bangladeshi -- and to become a champion of bottom-up development.

We've known about global warming for 50 years and done little about it, says Google.org director Larry Brilliant. In spite of this and other depressing trends, he's optimistic and tells us why. From Skoll World Forum, Oxford, UK, www.skollfoundation.org

Clay Shirky looks at "cognitive surplus" -- the shared, online work we do with our spare brain cycles. While we're busy editing Wikipedia, posting to Ushahidi (and yes, making LOLcats), we're building a better, more cooperative world.

The "broken" US political system is actually working exactly as designed, says business leader and activist Katherine Gehl. Examining the system through a nonpartisan lens, she makes the case for voting innovations, already implemented in parts of the country, that give citizens more choice and incentivize politicians to work towards progress an...

Two-thirds of the world may not have access to the latest smartphone, but local electronic shops are adept at fixing older tech using low-cost parts. Vinay Venkatraman explains his work in "technology crafts," through which a mobile phone, a lunchbox and a flashlight can become a digital projector for a village school, or an alarm clock and a m...

What happens when the way we buy, sell and pay for things changes, perhaps even removing the need for banks or currency exchange bureaus? That's the radical promise of a world powered by cryptocurrencies like Bitcoin and Ethereum. We're not there yet, but in this sparky talk, digital currency researcher Neha Narula describes the collective ficti...

"I don't think we're going to make it," John Doerr says in an emotional talk about climate change and investment. To create a world fit for his daughter to live in, he says, we need to invest now in clean, green energy.

While working with kids who have trouble speaking, Ajit Narayanan sketched out a way to think about language in pictures, to relate words and concepts in "maps." The idea now powers the FreeSpeech app, which can help nonverbal people communicate.

In every workplace, there are three basic kinds of people: givers, takers and matchers. Organizational psychologist Adam Grant breaks down these personalities and offers simple strategies to promote a culture of generosity and keep self-serving employees from taking more than their share.

Activist Caroline Casey tells the story of her extraordinary life, starting with a revelation (no spoilers). In a talk that challenges perceptions, Casey asks us all to move beyond the limits we may think we have.

The debate over foreign aid often pits those who mistrust "charity" against those who mistrust reliance on the markets. Jacqueline Novogratz proposes a middle way she calls patient capital, with promising examples of entrepreneurial innovation driving social change.

In a timely talk, cultural critic Virginia Postrel muses on the true meaning, and the powerful uses, of glamour -- which she defines as any calculated, carefully polished image designed to impress and persuade.

Peter Diamandis says it's our moral imperative to keep exploring space -- and he talks about how, with the X Prize and other incentives, we're going to do just that.

Rodney Mullen is the godfather of street skating, and in this exuberant talk he shares his love of the open skateboarding community. He shows how the unique environments skaters play in drive the creation of new tricks -- fostering prolific ingenuity purely for passion's sake.

As we reboot the world's economy, Geoff Mulgan poses a question: Instead of sending bailout money to doomed old industries, why not use stimulus funds to bootstrap some new, socially responsible companies -- and make the world a little bit better?

Traditional lab tests for disease diagnosis can be too expensive and cumbersome for the regions most in need. George Whitesides' ingenious answer is a foolproof tool that can be manufactured at virtually zero cost.

What if we could better understand the world's biggest challenges simply by looking at a map? Jack Dangermond, a pioneer in geographic information system (GIS) technology that powers the digital maps people around the world use every day, speaks with TED technology curator Simone Ross about how his team is building a geospatial nervous system: a...

The founder of Sirius XM satellite radio, Martine Rothblatt now heads up a drug company that makes life-saving medicines for rare diseases (including one drug that saved her own daughter's life). Meanwhile she is working to preserve the consciousness of the woman she loves in a digital file ... and a companion robot. In an onstage conversation w...

The pandemic has deepened the need to rethink education. In conversation with TED Global Curator Bruno Giussani, Dr. Ahmad M. Hasnah of Qatar Foundation discusses an educational model from Doha, Qatar that informs the global needs of students and shares insight into the newly launched TEDinArabic (بالعربي TED), a global platform for thinkers, r...

How do you deal with jerks at work? And is it possible to eliminate them altogether? (Audio only)

"I'm a capitalist. I believe in the system. I believe you can increase the size of the pie and you could divide it well," says Ray Dalio, founder of Bridgewater Associates. He offers wide-ranging insight and advice on how we might recover from the global economic fallout of the coronavirus crisis -- and use it as an opportunity to reform the sys...

Do schools kill creativity? Back in 2006, Sir Ken Robinson posed this question to the TED audience -- and boy, did it touch a nerve. More than fifty million views and a decade later, head of TED Chris Anderson sits down with Sir Ken to dig into the changes and progress that have been made, and to see if the answer now is any different. How are e...

This video features Auslan (Australian Sign Language) interpretation. We’re 60% more productive than we were a mere 30 years ago. It’s certain that we’re generating more and more activity into more and more wealth, but is there a benefit? There is a cost. But what is it, and how do you measure it? In this thought provoking and often funny talk, ...

Everyone has people and events that trigger unwanted emotions and behaviors. Even long-standing unempowering patterns can be quickly and permanently changed. Every behavior follows this sequence: Event - Meaning - Emotion - Behavior. Attendees will be able to use this to permanently eliminate even lifelong un-empowering emotions and behaviors ...

How the model of Turkish Village Institutes can help women and girls get better education