Energy expert Sebastián Kind helped Argentina go from virtually no renewable energy to generating nearly 40 percent of its electricity from wind and solar in just six years, despite economic crises and skepticism. How did the country's...

Fighting climate change is much like long-distance running: a complex journey filled with obstacles, fast-changing conditions and the need for constant adaptation. Drawing on his own experience as an ultramarathon runner, energy expert...

Physicians are increasingly using weight loss drugs to treat obesity, diabetes and other chronic conditions in young patients. In the last three years, the number of people between the ages of 12 and 25 using drugs like Wegovy and...

US President Joe Biden and President of the People's Republic of China Xi Jinping recently met in San Francisco. It was the first time Xi had visited the US in six years — and the first time the two leaders had met in person in a year....

We can produce abundant, sustainable and cheap energy — for everyone, says physicist Julio Friedmann. He explores the infrastructure, innovation and investment needed to supply energy to 10 billion people, offering case studies from...

A 2006 study took a class of surgical residents and split them into two groups. Each received the same study materials, but one group was told to use specific study methods. When tested a month later, this group performed significantly...

An athlete is preparing for a game. They've put on their gear and done their warmup, and now it's time for one more routine — stretching. Typically, athletes stretch before physical activity to avoid injuries like strains and tears. But...

As refugees from war flee across continental Europe, a few have found safety in an unlikely place: Iceland. New legislation there relaxes immigration controls, worrying some residents -- but more citizens favor diversifying their mostly...

As part of his continuing series of reports examining the country's economic future, Paul Solman sits down with Yale historian Paul Kennedy to discuss the rise and fall of the U.S. and other great economic powers

Companies worldwide are pledging to play a more meaningful role in the well-being of their employees, customers and the environment. How can they turn their promises into action? From creating a representative boardroom to committing to...

The wheat, corn and rice we grow today may not thrive in a future threatened by climate change. Cary Fowler takes us inside the Svalbard Global Seed Vault, a vast treasury buried within a frozen mountain in Norway, that stores a diverse...

As a sex educator, Emily Nagoski is often asked: How do couples sustain a strong sexual connection over the long term? In this funny, insightful talk, she shares her answer -- drawing on (somewhat surprising) research to reveal why some...

Long conflict can wreck a country, leaving behind poverty and chaos. But what's the right way to help war-torn countries rebuild? At TED@State, Paul Collier explains the problems with current post-conflict aid plans, and suggests 3 ideas...

What do you learn when you sail around the world on your own? When solo sailor Ellen MacArthur circled the globe – carrying everything she needed with her – she came back with new insight into the way the world works, as a place of...

Volcanoes, climate change, and Chinese history may seem like three phrases spit out of a random word generator, but the three things are more inherently linked than one may assume.

Scaremongers play on the idea that robots will simply replace people on the job. In fact, they can become our essential collaborators, freeing us up to spend time on less mundane and mechanical challenges. Rodney Brooks points out how...

If we want sustainable, long-term security to be the norm in the world, it's time to radically rethink how we can achieve it, says TED Fellow and conflict researcher Benedetta Berti. In an eye-opening talk, Berti explains how building a...

Today, a single email can launch a worldwide movement. But as sociologist Zeynep Tufekci suggests, even though online activism is easy to grow, it often doesn't last. Why? She compares modern movements -- Gezi, Ukraine, Hong Kong -- to...

Alleviating poverty is more guesswork than science, and lack of data on aid's impact raises questions about how to provide it. But Clark Medal-winner Esther Duflo says it's possible to know which development efforts help and which hurt...

Stewart Brand works on the Clock of the Long Now, a timepiece that counts down the next 10,000 years. It's a beautiful project that asks us to think about the far, far future. Here, he discusses a tricky side problem with the Clock:...

Around the world right now, one billion people are trapped in poor or failing countries. How can we help them? Economist Paul Collier lays out a bold, compassionate plan for closing the gap between rich and poor.

The report you've been putting off is due tomorrow. It's time to buckle down, open your computer ... and check your phone. Maybe watch your favorite YouTube channel? Or maybe you should just start in the morning? This is the cycle of...

Is it possible to run a company and reinvent it at the same time? For business strategist Knut Haanaes, the ability to innovate after becoming successful is the mark of a great organization. He shares insights on how to strike a balance...

IKEA currently makes up 0.1 percent of all global carbon emissions -- but by 2030, they're planning to be carbon negative across their business. Discussing new thinking about the lifespan of their products, from the forest to the...