TED Talks
TED: Can the US and China take on climate change together? | Changhua Wu
Climate change doesn't care about ideological divides, says policy analyst and China expert Changhua Wu. Here's what she says the US can learn from the progress China has made on the clean energy revolution -- and why collaboration...
TED Talks
TED: Can we feed ourselves without devouring the planet? | George Monbiot
Farming is the worst thing humanity has ever done to the planet, says journalist George Monbiot. What's more: the global food system could be heading toward collapse. Detailing the technological solutions we need to radically reshape...
Curated Video
Obama: Climate Deal 'Potential Turning Point'
President Barack Obama is welcoming the news that the Paris agreement on climate change will take effect in a month as a historic achievement.Obama, speaking in the Rose Garden, says that on this day, "the world meets the moment."Obama...
Crash Course
The Rise of the West and Historical Methodology: Crash Course World History
In which John Green talks about the methods of writing history by looking at some of the ways that history has been written about the rise of the West. But first he has to tell you what the West is. And then he has to explain the Rise of...
TED Talks
TED: Remembering climate change ... a message from the year 2071 | Kim Stanley Robinson
Coming to us from 50 years in the future, legendary sci-fi writer Kim Stanley Robinson tells the "history" of how humanity ended the climate crisis and restored the damage done to Earth's biosphere. A rousing vision of how we might unite...
TED Talks
TED: We need nuclear power to solve climate change | Joe Lassiter
Joe Lassiter is a deep thinker and straight talker focused on developing clean, secure and carbon-neutral supplies of reliable, low-cost energy. His analysis of the world's energy realities puts a powerful lens on the stubbornly touchy...
TED Talks
TED: Let's save the last pristine continent | Robert Swan
2041 will be a pivotal year for our planet. That year will mark the end of a 50-year agreement to keep Antarctica, the Earth's last pristine continent, free of exploitation. Explorer Robert Swan — the first person to walk both the North...
TED Talks
Karen Armstrong: My wish: The Charter for Compassion
People want to be religious, says scholar Karen Armstrong; we should help make religion a force for harmony. She asks the TED community to help build a Charter for Compassion -- to restore the Golden Rule as the central global religious...
TED Talks
TED: The inside story of the Paris climate agreement | Christiana Figueres
What would you do if your job was to save the planet? When Christiana Figueres was tapped by the uN to lead the Paris climate conference (COP 21) in December 2015, she reacted the way many people would: she thought it would be impossible...
TED Talks
Humanity's planet-shaping powers -- and what they mean for the future | Achim Steiner
Humanity now has incredible power to shape nature and the Earth: the power to destroy and the power to repair, says sustainability champion and UNDP Administrator Achim Steiner. In this action-oriented talk, Steiner shows how this power...
Crash Course
How Does Language Move? Crash Course Geography
While we can’t explore every cultural trait in the world, language is an important system of spoken, signed, or written symbols humans use to express themselves. It’s a major marker of identity that often unites members of the same...
TED Talks
TED: How Indigenous guardians protect the planet and humanity | Valérie Courtois
If we take care of the land, the land takes care of us, says Indigenous leader Valérie Courtois. As climate change continues to devastate the planet, Indigenous guardians are helping to honor our responsibility to the land, monitoring...
TED Talks
TED: Who would the rest of the world vote for in your country's election? | Simon Anholt
Wish you could vote in another country's election? Simon Anholt unveils the Global Vote, an online platform that lets anybody, anywhere in the world, "vote" in the election of any country on earth (with surprising results).
Crash Course
Theories of Global Stratification: Crash Course Sociology
Today we’ll discuss two theories of global stratification. First, we’ll go over modernization theory and Walt Rostow’s Four Stages of Modernization. Next, we’ll explain dependency theory, the legacy of colonialism, and Immanuel...
Crash Course
Foreign Policy: Crash Course Government and Politics
Today Craig finishes up our series on U.S. Government and Politics by talking about both the least and most important aspect of government: foreign policy. Foreign policy is important because it has the potential to affect the largest...
Crash Course
Post-War Rebuilding and the Cold War: Crash Course European History
Sometimes, friendship isn't forever. At the conclusion of World War II, the old structures of power were a shambles. The traditional European powers were greatly weakened by years of total war and widespread destruction. The USSR was...
Crash Course
The Olympics, FIFA, and why we love sports: Crash Course Games
Today, John Green is going to be your substitute teacher as we dive into the world of sports! Now ��_sports��_ is a pretty broad genre of game, we probably couldn't even cover them in an entire series, but today we're going to do...
TED Talks
TED: Saving the ocean one island at a time | Greg Stone
Aboard Mission Blue, scientist Greg Stone tells the story of how he helped the Republic of Kiribati to create an enormous protected area in the middle of the Pacific -- protecting fish, sealife and perhaps the island nation itself.
TED Talks
TED: The world doesn't need more nuclear weapons | erika Gregory
Today nine nations collectively control more than 15,000 nuclear weapons, each hundreds of times more powerful than those dropped on Hiroshima and Nagasaki. We don't need more nuclear weapons; we need a new generation to face the...
TED Talks
Daniel Suarez: The kill decision shouldn't belong to a robot
As a novelist, Daniel Suarez spins dystopian tales of the future. But on the TEDGlobal stage, he talks us through a real-life scenario we all need to know more about: the rise of autonomous robotic weapons of war. Advanced drones,...
Crash Course
Expansion and Resistance: Crash Course European History
In 19th century Europe, with nation building well under way, thoughts turned outward, toward empire. This week, we're looking at how Europeans expanded into Africa, Asia, and Oceania during the 1800s. You'll learn about China and the...
Crash Course
Decolonization and Nationalism Triumphant Crash Course World History
In which John Green teaches you about the post-World War II breakup of most of the European empires. As you'll remember from previous installments of Crash Course, Europeans spent several centuries sailing around the world creating...
TED-Ed
TED-Ed: The first and last king of Haiti | Marlene Daut
The royal couple of Haiti rode into their coronation to thunderous applause. After receiving his ornate crown, Henry Christophe ascended his throne, towering 20 meters in the air. But little did the cheering onlookers know that the first...
Crash Course
Decolonization: Crash Course European History
After World War II, Europe was changing radically, and its place in the world was changing as well. European powers had colonized around the world in the 18th and 19th centuries, and in the 20th century, it all came crashing down. Of...