The most important yet misunderstood concept in climate science - Tim Lenton

📺This channel is 100% independent. Please consider helping us here: https://fr.tipeee.com/circular-metabolism-podcastThere is an essential and yet poorly understood concept in climate science: tipping points.Several climate tipping points (like ice loss in Greenland and Antarctica or the slowdown of the Atlantic circulation) are dangerously close and run the risk of triggering a "tipping cascade".To understand these risks and know how to keep us in a safe space through positive tipping points, we are talking with Professor Tim Lenton. Tim Lenton is Chair in Climate Change and Earth System Science at the University of Exeter. 🔷 CHAPTERS00:00 Introduction05:33 The Earth system11:18 Vital signs of the system15:28 Tipping points29:00 Irreversibility32:34 Civilizational tipping points35:08 Early warning signals38:31 Socio-ecological tipping points44:19 Positive tipping points🔷 REFERENCESRecommended books:• Gaia, a new look at life on earth (1979) James Lovelock• The Ages of Gaia (1988), James LovelockScientific articles:• Lenton's tipping points article (paywall): https://www.nature.com/articles/d41586-019-03595-0• Planetary boundaries: https://www.stockholmresilience.org/research/planetary-boundaries.html• Social tipping points (the "25% rule"): https://pubmed.ncbi.nlm.nih.gov/29880688/🔷 MAIN TAKEAWAYS• Map of the tipping elements (HD): https://i.ibb.co/DbKqshq/elements.png2 main views:• Object (thing) perspective: seeing the system's elements as static and well defined (better spatial accuracy, worse temporal fidelity)• Process perspective: seeing the system's elements as changing and interconnected (better temporal fidelity, worse spatial accuracy)Types of feedback loops: • Damping feedback (provides stability)• Amplifying feedback (creates possible instability)Types of cycles:• Real cycles made of material flows• Causal cycles made of causal chains between eventsTipping point: • Threshold of an amplifying feedback loop beyond which change becomes self-propelling• Happen when the damping feedbacks get weaker than the amplifying feedbacks (variability increases)🎤 Interview: Aristide Athanassiadis🎞️ Editing: https://codexprod.fr-------------------------------------------------------------------------------------------------🔷 LINKS👀 Youtube: https://youtu.be/_ZrErfqDwTA💌 Newsletter: https://www.circularmetabolism.com/👂 iTunes: https://podcasts.apple.com/be/podcast/circular-metabolism-podcast/id1455115320👂 Spotify: https://open.spotify.com/show/13qH9Oj4b0yF0dBidGAdFR🙏 Tipeee: https://fr.tipeee.com/circular-metabolism-podcast Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

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👋Hello everyone and Welcome to the Circular Metabolism podcast, the bi-weekly meeting where we have in-depth discussions with thinkers, researchers, activists, policy makers and practitioners to better understand the metabolism of our cities and how to reduce their environmental impact in a systemic, socially just and context-specific way. This podcast is hosted and produced by Aristide Athanassiadis from Metabolism of Cities👋Bonjour et Bienvenu.e au Circular Metabolism Podcast. Le rendez vous bi-hebdomadaire qui interviewe des chercheurs, des décideurs politiques et des praticiens pour mieux comprendre le métabolisme de nos villes et comment réduire leur impact environnemental d’une manière systémique, juste et contextualisée. Ce podcast est produit par Aristide Athanassiadis membre et co-fondateur de Metabolism of Cities. Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.