How Nature Heals Us
Host Shankar Vedantam speaks with psychologist Mark Berman about why exposure to nature can improve mood, reduce stress, and restore attention. They explore historical and personal stories, research on hospital recovery and nature walks, theories like attention restoration and biophilia, and how design choices-from walking routes to architecture and indoor greenery-can bring nature's benefits into everyday life.
We're doing AI all wrong. Here's how to get it right | Sasha Luccioni
AI sustainability expert Sasha Luccioni argues that current AI development is being driven by a "bigger is better" mentality that concentrates power in a few large tech companies while causing significant environmental and social harms. She contrasts massive, energy-hungry large language models and data centers with smaller, task-specific and open AI systems that can run on modest hardware and support climate solutions. Luccioni calls for transparent energy metrics, supportive regulation, and user choices that prioritize sustainable, equitable AI that serves all of humanity and the planet.
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.
Tax the rich - and save the planet | Esther Duflo
Host Elise Hu introduces a TED Talk by economist Esther Duflo, who argues that the world's richest individuals and largest multinational corporations should fund climate damage costs through targeted taxes. Duflo quantifies the mortality and financial burden that greenhouse gas emissions from rich countries impose on low- and middle-income countries and proposes a global wealth and corporate tax to raise around $1.7 trillion annually. She advocates sending this money directly to people, especially in poorer nations, to build resilience and create a new grand bargain where rich countries pay climate damages and poorer countries commit to strong climate action.
The hidden cost of buying gold | Claudia Vega
Rainforest toxicologist and TED Fellow Claudia Vega explains how artisanal gold mining in the Peruvian Amazon releases large amounts of mercury, causing severe environmental damage and public health risks locally and globally. She describes the mining process, mercury's toxic effects, and the massive deforestation in Madre de Dios, as well as her work establishing the first mercury lab in the Peruvian Amazon to generate local data for communities, policymakers, and international agreements. In conversation with TED Fellows Program Director Lily James Olds, she discusses working with indigenous communities, changing mining practices, the limits of "green" gold, the need for consumer awareness and traceability, and her fears about fake news and hope in small but real changes.
What separates us from chimpanzees? | Jane Goodall
Host Elise Hugh introduces a 2003 TED Talk by primatologist Jane Goodall, presented as a tribute after news of her death, highlighting her groundbreaking work with chimpanzees and its impact on how we understand humans and other animals. In the talk, Goodall describes chimpanzee cognition and culture, the environmental and social forces threatening great apes and human communities, and her youth program Roots and Shoots. She closes by arguing that hope lies in our individual and collective choices to live more lightly on the planet and act with compassion toward all life.
How we took on an oil giant - and won | Melinda Janki
Climate justice litigator Melinda Janke explains how she uses existing environmental and liability laws in Guyana to challenge ExxonMobil's massive offshore oil projects. She details several landmark legal victories that restricted permit durations, forced inclusion of global "scope three" emissions in impact assessments, and imposed unlimited liability backed by a parent company guarantee. The talk emphasizes that law is a powerful tool ordinary people can use to hold fossil fuel companies accountable and that the oil industry is more vulnerable than it appears.
(#5) Elise's Top Ten: The new political story that could change everything | George Monbiot
Host Elise Hu introduces a 2019 TED Summit talk by journalist George Monbiot, part of her 'Top 10' playlist, about the political stories that shape our societies. Monbiot argues that neoliberalism persists not because it works, but because it has not yet been replaced by a more compelling 'restoration story', and he explains how narrative structures drive political change. He proposes a new politics of belonging centered on human altruism, cooperation, the commons, and participatory democracy to counter atomization and authoritarian tendencies.