How AI is unearthing hidden scientific knowledge | Sara Beery
Ecologist and AI researcher Sarah Beery explains how vast ecological databases like iNaturalist contain far more information than simple species sightings, including individual identification, species interactions, vegetation, and food webs. She describes how her team at MIT built an AI-powered system called Inquire that lets scientists search millions of images using natural language queries to rapidly extract research-ready datasets, dramatically accelerating ecological discovery. The talk closes with a call for widespread citizen participation in data collection to help build a more complete, actionable picture of life on Earth and support conservation in the face of the biodiversity crisis.
Rice is Nice
The hosts explore rice as a global staple food, covering what rice actually is, its major species and varieties, and how it is grown in different environments. They discuss environmental impacts such as methane and nitrous oxide emissions from rice paddies, arsenic contamination and health considerations, and global patterns of rice production and consumption. The episode also highlights notable rice dishes and desserts from around the world and concludes with listener mail reflecting on the show itself.
How the fridge changed food | Nicola Twilley
Food researcher Nicola Twilley explains how the global cold chain underpins modern diets by keeping food fresh and enabling long-distance transport of meat and produce, while forming an enormous artificial cryosphere. Using examples such as Kenyan avocado exports and the absence of marula fruit in U.S. supermarkets, she shows how refrigeration creates both benefits and inequities, shifts where food waste occurs, and significantly contributes to global emissions. Twilley argues that as many countries are only now building their cold chains, this is a critical moment to rethink freshness, develop lower-emission refrigeration, and explore non-cold preservation methods and system-wide redesigns of how we store and move food.
The army of autonomous robots restoring nature | Tom Chi
Impact investor Tom Chi challenges the popular belief that economic growth must come at the expense of nature, arguing instead that the economy is physically a subset of the ecology because everything is ultimately mined or grown. He quantifies the scale of current extraction and describes how outdated industrial processes damage ecosystems, then presents three key shifts: closing material loops through advanced recycling, transforming agriculture with regenerative practices and AI-guided breeding, and using robotics for large-scale restoration on land and underwater. Through concrete examples-from battery recycling and adaptive crops to mangrove-planting drones and a low-cost coral and seagrass-planting robot-he illustrates how modern technology can actively repair ecosystems while supporting a resilient future economy.
How climate shocks could break the economy | Edmond Rhys Jones
Host Elise Hu introduces a TED talk by climate pathfinder Edmund Rhys-Jones, who explores the economic implications of climate change. Rhys-Jones argues that while climate science is detailed and alarming, traditional economic models understate real-world disruption because they ignore how climate shocks propagate through financial infrastructure. He calls for new, complexity-based simulations and financial innovations to better manage growing climate-related turbulence and safeguard a significant share of global GDP.
Sunday Pick: Tech Solutions (#1): The affordable tech that will revolutionize farming (with Samir Ibrahim and Josephine Waweru)
This episode of TED Tech, part of a special mini-series recorded at the TED Countdown Climate Summit in Nairobi, explores how affordable solar-powered water pumps are transforming smallholder farming. Host Cheryl Dorsey speaks with Sun Culture CEO Samir Ibrahim about building a farmer-centered business that has driven down the cost of solar irrigation through both engineering and business model innovation, while navigating investors and climate-related priorities. Coffee farmer Josephine Waweru then shares how installing a solar pump on her Kenyan farm solved her water challenges, enabled her to expand her crops and income, and inspired her to encourage other farmers and young people to see farming as a viable, growth-oriented business.
3 tips to make your world beautifully wild | Isabella Tree
Host Elise Hu introduces environmentalist and conservationist Isabella Tree, who shares how rewilding-allowing nature and animals to restore ecosystems-can be done not only on large estates but also in ordinary gardens and urban spaces. Tree describes the transformation of her family's debt-ridden, intensively farmed land into a thriving, biodiverse rewilding project through free-roaming animals and habitat change. She then offers three practical tips for rewilding any green space and concludes with examples of urban rewilding and the mindset shift required to embrace messier, less controlled landscapes.
How to measure the planet's heartbeat | Yadvinder Malhi
Ecosystem ecologist Yadvinder Mali explains how he and colleagues measure and map the flows of energy, carbon, and nutrients that sustain ecosystems, from forests and soils to coral reefs. He introduces the idea of "vibrancy"-the complexity and spread of energy through many species-as a key determinant of ecosystem health and resilience. Using examples from English woodlands, savannas, and tropical atolls, he argues that valuing nature only for carbon undermines this vibrancy, and that working with the wild energies of the biosphere gives both ecosystems and human communities their best chance to adapt to climate change.
Nuts.com: Jeff Braverman. From Corner Store to Snacktime Powerhouse
Host Guy Raz interviews Jeff Braverman about how he transformed his family's small Newark Nut Company, founded in 1929, into the large e‑commerce brand Nuts.com. Jeff describes growing up in the store, his early experiments putting the business online, and eventually leaving a lucrative finance job to overhaul operations and focus on direct-to-consumer internet sales. He explains key inflection points, including aggressive use of Google Ads, quirky marketing stunts, a major rebrand to Nuts.com, navigating COVID-era challenges, and eventually transitioning from CEO to chairman while keeping the business family-owned.
How satellites are supporting farmers across Africa | Catherine Nakalembe
Satellite food security specialist Catherine Nakalembe explains how she uses satellite imagery and machine learning to map and monitor crops across African countries, and why many existing models fail when applied to smallholder farms. In a follow-up conversation with TED Fellows Program Director Lily James-Olds, she describes the gap between powerful data systems and farmers' realities, the importance of ground-based data and local context, and her efforts to build practical, human-centered ways to turn drought and flood information into action. She also shares a grassroots project to establish soil moisture calibration stations in Africa and reflects on the institutional and financial barriers, as well as the sources of hope that keep her pursuing this work.
How to pull the emergency brake on global warming | Mohamed A. Sultan
Host Elise Hu introduces a TED Talk by sustainability strategist Mohamed A. Sultan about the urgency and opportunity of cutting methane emissions, especially across the African continent. Sultan explains how methane from landfills, fossil fuels, and agriculture significantly drives global warming, and highlights concrete African examples in waste management, energy, and rice cultivation that reduce methane while improving public health, jobs, and food security. He argues that better governance, finance, and development models can simultaneously build resilience, advance economic development, and lower methane emissions worldwide.
#2397 - Richard Lindzen & William Happer
Joe Rogan speaks with atmospheric scientist Dick Linson and physicist Will Happer about climate science, the history of climate narratives, and how they believe politics and funding have distorted the field. They discuss CO2, water vapor, ice ages, solar variability, and climate models, while arguing that the current climate crisis narrative is exaggerated and tightly tied to financial and political incentives. The conversation also explores historical analogies like eugenics and the Salem witch trials, structural issues in academia and peer review, and the psychological and societal impacts of climate alarmism.