TED Talks Daily

Witness the unveiling of Countdown, a major global campaign to cut greenhouse gas emissions. TED has partnered with scientists, policy makers, organizations, activists and more to create an initiative that everyone in the world can be part of. Check out http://countdown.ted.com to learn how you can get involved — and help turn the tide on climate. [Note: there are two unusual features of this TED Talk. One, it's much longer than our normal, extending a full hour. Two, it's made up of contributions from more than a dozen people, including UN Secretary-General Antonio Guterres, Al Gore, Katharine Hayhoe, Jimmy Kimmel and Yuval Noah Harari, among others. We're putting it out there because the topic deserves this kind of prominence.]

Valorie Kondos Field knows a lot about winning. As the longtime coach of the UCLA women's gymnastics team, she won championship after championship and has been widely acclaimed for her leadership. In this inspiring, brutally honest and, at times, gut-wrenching talk, she shares the secret to her success. Hint: it has nothing to do with "winning."

Feeling burned out? You may be spending too much time ruminating about your job, says psychologist Guy Winch. Learn how to stop worrying about tomorrow's tasks or stewing over office tensions with three simple techniques aimed at helping you truly relax and recharge after work.

In a world that's wasting more food than ever before, why do one in nine people still go to bed hungry each night? Social entrepreneur Jasmine Crowe calls for a radical transformation to our fight to end global hunger -- challenging us to rethink our routine approaches to addressing food insecurity and sharing how we can use technology to gather unused food and deliver it directly to people in need.

We are all connected by the spectacular birth, death and rebirth of stars, says astrophysicist Enrico Ramirez-Ruiz. Journey through the cosmic history of the universe as Ramirez-Ruiz explains how supernovas forged the elements of life to create everything from the air you breathe to the very atoms that make you.

Your lifelong health may have been decided the day you were born, says microbiome researcher Henna-Maria Uusitupa. In this fascinating talk, she shows how the gut microbes you acquire during birth and as an infant impact your health into adulthood -- and discusses new microbiome research that could help tackle problems like obesity and diabetes.

There are three billion working people on this planet, and only 40 percent of them report being happy at work. Michael C. Bush shares his insights into what makes workers unhappy -- and how companies can benefit their bottom lines by fostering satisfaction.

Water is essential to life. Yet in the eyes of the law, it remains largely unprotected -- leaving many communities without access to safe drinking water, says legal scholar Kelsey Leonard. In this powerful talk, she shows why granting lakes and rivers legal "personhood" -- giving them the same legal rights as humans -- is the first step to protecting our bodies of water and fundamentally transforming how we value this vital resource.

To address the problem of counterfeit goods, African entrepreneurs like Bright Simons have come up with innovative and effective ways to confirm products are genuine. Now he asks: Why aren't these solutions everywhere? From password-protected medicines to digitally certified crops, Simons demonstrates the power of local ideas -- and calls on the rest of the world to listen up.

What's the difference between heroes and leaders? In this insightful talk, Lorna Davis explains how our idolization of heroes is holding us back from solving big problems -- and shows why we need "radical interdependence" to make real change happen.