After the Fukushima disaster shut down Japan’s nuclear reactors, the coal industry rushed in to fill the energy gap. As climate advocate Kimiko Hirata watched dozens of new coal plant proposals quietly surface across the country — each one locking in decades of future emissions — she resolved to make them impossible to ignore. She shares how a small, scrappy civil society movement took on a fossil-fuel-dependent economy and got people to say “yes” to a renewable future. (Recorded at TED Countdown Summit 2025 on June 18, 2025)

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The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less) — plus originals, podcasts and exclusive content. Look for videos on Technology, Entertainment and Design as well as science, business, global issues, the arts and more. Visit for our entire library, transcripts, translations and personalized recommendations.

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When monarch butterflies migrate, they produce one of the most iconic wildlife spectacles in the world — and provide us with an important indicator of ecological health, says photographer Jaime Rojo. Telling a story about our relationship to the natural world, he shares his experience photographing these mesmerizing insects deep in their remote mountain habitats in Mexico, diving into the latest research into the mysteries of their multi-thousand-mile journey and sharing how each of us can join the growing movement to protect them.

As chief content officer of Forbes, Randall Lane oversees the magazine’s signature list of billionaires, tracking the richest people on Earth. But he has noticed that this prompts the ultra-wealthy to stockpile their money instead of spending it on the public good. He debuts a new ranking — True Net Worth — that applauds billionaires for their philanthropy and rewards generosity. Guess who’s in the top five? (Recorded at TED2026 on April 16, 2026)

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The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less) — plus originals, podcasts and exclusive content. Look for videos on Technology, Entertainment and Design as well as science, business, global issues, the arts and more. Visit for our entire library, transcripts, translations and personalized recommendations.

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TED videos may be used for non-commercial purposes under a Creative Commons License, Attribution–Non Commercial–No Derivatives (or the CC BY – NC – ND 4.0 International) and in accordance with the TED Talks Usage Policy: . For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), submit a request at

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