Nearly half of all pregnancies in the United States are unplanned, the result of millions of people being unable to get the birth control method that works best for them. Reproductive health advocate and 2023 Audacious Project grantee...

In the last few decades, China has gone from technological scarcity to abundance. What sparked this shift? Economist Keyu Jin explores how China has fostered a model of innovation unlike any other and shows why understanding its...

Using found materials and mesmerizing structures that unearth deep-rooted emotions, Wangechi Mutu's visual creations celebrate our collective history and explore how art communicates into the future. From ancient rock carvings in the...

Learning how to have productive conversations about race is a necessary part of the human experience. Educator Afrika Afeni Mills says the best place to start is in the classroom -- because the earlier these skills are taught, the fewer...

For one hundred days in 1994, the African country of Rwanda suffered a horrific campaign of mass murder. Neighbor turned against neighbor as violence engulfed the region, resulting in the deaths of over one-tenth of the country's...

She was the Queen of France, notorious for living in opulence while peasants starved and became a symbol of everything wrong with monarchy. But was Marie Antionette a heartless, wasteful queen, or a convenient scapegoat in turbulent...

Today in many countries solar is the cheapest form of energy to produce. Millions of homes are equipped with rooftop solar, with most units paying for themselves in their first seven to 12 years and then generating further savings. So,...

Nearly 40 percent of humanity lives near a coast -- and no two coasts are the same. How can these communities build resilience to the increasing risks of climate change? Climate advisor Dave Sivaprasad outlines how to tackle this complex...

What do we say to kids when intensely traumatic events interrupt everyday life? Whether you're a teacher, parent or community builder, educator Kristen Nguyen provides three research-backed steps for navigating these difficult...

TED Fellow Jawad Sharif was born with a rebellious streak -- and he's used it in his documentary films to amplify the unheard voices of Pakistan. Sharing three stories of everyday heroes -- a high-altitude mountaineer, a folk musician of...

Thomas Jefferson, founding father of the United States and primary author of the Declaration of Independence, was part of America's fight for freedom and equality. But in his personal life, he held over 600 people in slavery. Are his...

Actor and activist Fehinti Balogun pieces together multiple complex issues -- climate change, colonialism, systemic racism -- in a talk that's part spoken-word poem, part diagnosis of entrenched global problems. Seeing the connections is...

Pakistan contributes less than one percent to the global greenhouse gas emissions perpetrating climate change, yet one-third of the country was recently inundated with "biblical" floods that killed hundreds and displaced millions. If...

Global consumer strategist Aparna Bharadwaj shares a fascinating glimpse at under-the-radar affinities that transcend cultures and borders -- from the way people snack in China and Saudi Arabia to how people shop for clothes in the US...

In August 1968, factory workers overheard news of a mandatory meeting. Whispered rumors described shipments of a gift from the country's Communist leader, Chairman Mao Zedong. And sure enough, managers soon distributed a gift to every...

There's something simple we can all do to help the planet -- and it's probably not what you think. With one-third of all the food we produce globally each year being thrown away, entrepreneur Tessa Clarke believes that sharing more and...

In 1830, David Walker sewed a pamphlet into the lining of a coat. The volume was thin enough to be hidden, but its content was far from insubstantial. At the time, many members of the US government considered this pamphlet to be one of...

In which John Green teaches you about the Progressive Presidents, who are not a super-group of former presidents who create complicated, symphonic, rock soundscapes that transport you into a fantasy fugue state. Although that would be...

Colleges and universities in the US make billions of dollars each year from sports, compromising the health and education of athletes -- who are disproportionately Black -- in the name of money, power and pride. Sports lawyer and...

Media and advertising companies still use the same old demographics to understand audiences, but they're becoming increasingly harder to track online, says media researcher Johanna Blakley. As social media outgrows traditional media, and...

Why are we so deadlocked on climate, and what would it take to overcome the seemingly insurmountable barriers to progress? Policy entrepreneur TED Halstead proposes a transformative solution based on the conservative principles of free...

Greenhouse gases are colorless, scentless and invisible, making them exceptionally hard to measure. Fortunately, some tools and techniques can help -- one of the most powerful being artificial intelligence, says green technologist...

Africa needs new energy sources to fuel its development, but the continent should invest in renewable energy instead of cheap, polluting alternatives like coal, says climate inclusion activist Chibeze Ezekiel. He tells the story of how...

Public health activities are all the ways society coordinates to deliver better health to people. That may sound super broad, and it is, so in this episode of Crash Course Outbreak Science, we'll take a look at public health works to...