From local parks to the Amazon rainforest, trees provide shade and shelters for humans, animals, insects, and many other living creatures. They’re the lungs of our planets, but they’re being threatened by deforestation. In this episode, Sherrell is sharing two talks on what happens if the entire Amazon rainforest disappears… and how one land reformer is using satellite imagery to hold tree cutters accountable.

Talk featured

Is the Amazon Rainforest disappearing? | Anna Rothschild

How to see (and stop) deforestation from space | Tasso Azevedo

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Is it effective to engage with politics on social media — and what does it take to make actual change? Katherine Cross is a researcher on online harassment and the author of Log Off: Why Posting and Politics (Almost) Never Mix. She shares why she believes social media is “anti-political” and how virtual engagement will not achieve the necessary political work for us. Katherine and Chris also discuss the limitations of short-form content in conveying decades of geopolitical strife, why our lives would be better off without social media, and the guardrails platforms could utilize to help users engage with posts critically and to slow down viral misinformation.

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We are living through what may be the largest economic bubble in history, spanning AI, cryptocurrency and tech company stocks, says financial analyst Henrik Zeberg. He explores why the current AI-crypto bubble mirrors the great economic frenzies of the past, revealing the psychological forces behind them — and why it looks like we're repeating the same patterns again.

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What if doing your chores were as easy as flipping a switch? In this talk and live demo, roboticist and founder of 1X Bernt Børnich introduces NEO, a humanoid robot designed to help you out around the house. Watch as NEO shows off its ability to vacuum, water plants and keep you company, while Børnich tells the story of its development — and shares a vision for robot helpers that could free up your time to focus on what truly matters.

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What if you had an AI-powered assistant — that took initiative on its own? Technology leader Swami Sivasubramanian believes AI agents are the future of work, capable of sparking new levels of productivity and creativity. Demystifying the workings of autonomous software systems, he explains what they are (and aren’t) and advocates for a world in which AI handles the boring stuff, so you can focus on what matters.

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With a billion mobile phone users and a median population age of 19, Africa isn't catching up to the AI revolution — it's writing an entirely different playbook, says business leader Hardy Pemhiwa. He shows how a generation of entrepreneurs is using AI to teach classes, triage patients and boost farm yields through the power of local compute, local data and local languages.

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After finding himself alone in an unreported wildfire in the woodlands of California, John Mills decided to take matters into his own hands. Hear the incredible story of how he rallied fire survivors and retired first responders to create Watch Duty, the nonprofit emergency alert system that’s beating official government warnings and buying people precious minutes to escape danger.

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More than 8,000 satellites orbit Earth, taking photos every day. Food security specialist and TED Fellow Catherine Nakalembe shows how she uses this imagery to help smallholder farmers across Africa prepare for floods, droughts and crop failures. Learn why real innovation isn’t always about shinier technology — it’s about making the tech truly fit the problem it’s solving.

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History has been written by whoever controls the dominant fuel of the era — until now, says renewables entrepreneur Matt Tilleard. He explains why, as the clean energy transition ramps up, we’re moving from a world where energy comes from burning fuels to one where it will come from using technology. Learn why this could change everything about global power dynamics — and why the future belongs not to those who control resources, but to those who build and share technology.

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Landfills across African cities are catching fire and releasing methane, an invisible greenhouse gas with more short-term warming potential than CO2. Sustainable strategist Mohamed A. Sultan reveals how local communities are turning this crisis into opportunity, diverting hundreds of tons of waste from landfills and helping thousands of farmers adopt more sustainable techniques. Learn why cutting methane emissions is a win-win opportunity to drive down global temperatures while also creating more livable cities. (This ambitious idea is part of The Audacious Project, TED’s initiative to inspire and fund global change.)

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In 2014, the world’s second largest coal consumer made a bold promise: to increase its solar capacity from three gigawatts to 100 gigawatts in just eight years. Many people called it overly ambitious, but energy expert Kanika Chawla saw the opportunity of a lifetime. She tells the story of how India became a solar powerhouse, turning an expensive dream into an economic reality — and creating a model for other countries to follow suit. After, Sherrell reflects on what drives the green economy and the growth strategy other companies can follow.

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