We waste a staggering one trillion dollars worth of food each year, significantly contributing to greenhouse gas emissions and the climate crisis. Food waste expert Dana Gunders shares innovative solutions to reduce waste — from solar-powered cold rooms to apps that sell discounted restaurant leftovers — and shares tips on how you can keep good food from going to the trash. (Recorded at TED Countdown Dilemma Series: Food on June 5, 2024)

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What does food mean to you, your community and our planet? With ​​personal accounts from the kitchen to the operating room, chef and content creator Jon Kung (@jonkung) and cardiologist Uma Valeti unpack how food cultivates creativity and offers opportunities to connect with and blend cultures. Exploring Valeti’s experiences developing a healthier meat alternative, they discuss what it takes to overcome the impossible — whether that’s saving a patient’s life or transforming ideas around traditional foods — and how we can all make steps towards more sustainable cooking. (This conversation is part of “TED Intersections,” a series featuring thought-provoking conversations between experts exploring ideas at the intersection of their experience.)

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The TED Talks channel features talks, performances and original series from the world’s leading thinkers and doers. Subscribe to our channel for videos on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. Visit to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more.

TED’s 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 our TED Talks Usage Policy: . For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), please submit a Media Request at

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Siri is getting an upgrade, including the ability to type questions to Siri instead of speaking, and to engage in more natural conversations — including the occasional stumble — thanks to its richer language understanding