{"version":"1.0","type":"rich","provider_name":"Acast","provider_url":"https://acast.com","height":250,"width":700,"html":"<iframe src=\"https://embed.acast.com/$/601c2c3e888747622bf934e6/6603fa7a59103800166a25c3?\" frameBorder=\"0\" width=\"700\" height=\"250\"></iframe>","title":"The most important yet misunderstood concept in climate science - Tim Lenton","thumbnail_width":200,"thumbnail_height":200,"thumbnail_url":"https://open-images.acast.com/shows/601c2c3e888747622bf934e6/1711535193839-acdd8ec028f280507628403115e7fb3a.jpeg?height=200","description":"<p>📺This channel is 100% independent. Please consider helping us here: https://fr.tipeee.com/circular-metabolism-podcast</p><p><br></p><p>There is an essential and yet poorly understood concept in climate science: tipping points.</p><p>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\".</p><p>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. </p><p><br></p><p>Tim Lenton is Chair in Climate Change and Earth System Science at the University of Exeter.  </p><p><br></p><p>🔷 CHAPTERS</p><p><br></p><p>00:00 Introduction</p><p>05:33 The Earth system</p><p>11:18 Vital signs of the system</p><p>15:28 Tipping points</p><p>29:00 Irreversibility</p><p>32:34 Civilizational tipping points</p><p>35:08 Early warning signals</p><p>38:31 Socio-ecological tipping points</p><p>44:19 Positive tipping points</p><p><br></p><p>🔷 REFERENCES</p><p><br></p><p>Recommended books:</p><p>• Gaia, a new look at life on earth (1979) James Lovelock</p><p>• The Ages of Gaia (1988), James Lovelock</p><p><br></p><p>Scientific articles:</p><p>• Lenton's tipping points article (paywall): https://www.nature.com/articles/d41586-019-03595-0</p><p>• Planetary boundaries: https://www.stockholmresilience.org/research/planetary-boundaries.html</p><p>• Social tipping points (the \"25% rule\"): https://pubmed.ncbi.nlm.nih.gov/29880688/</p><p><br></p><p>🔷 MAIN TAKEAWAYS</p><p><br></p><p>• Map of the tipping elements (HD): https://i.ibb.co/DbKqshq/elements.png</p><p><br></p><p>2 main views:</p><p>• Object (thing) perspective: seeing the system's elements as static and well defined (better spatial accuracy, worse temporal fidelity)</p><p>• Process perspective: seeing the system's elements as changing and interconnected (better temporal fidelity, worse spatial accuracy)</p><p><br></p><p>Types of feedback loops: </p><p>• Damping feedback (provides stability)</p><p>• Amplifying feedback (creates possible instability)</p><p><br></p><p>Types of cycles:</p><p>• Real cycles made of material flows</p><p>• Causal cycles made of causal chains between events</p><p><br></p><p>Tipping point: </p><p>• Threshold of an amplifying feedback loop beyond which change becomes self-propelling</p><p>• Happen when the damping feedbacks get weaker than the amplifying feedbacks (variability increases)</p><p><br></p><p>🎤 Interview: Aristide Athanassiadis</p><p>🎞️ Editing: https://codexprod.fr</p><p><br></p><p>-------------------------------------------------------------------------------------------------</p><p>🔷 LINKS</p><p><br></p><p>👀 Youtube: https://youtu.be/_ZrErfqDwTA</p><p>💌 Newsletter: https://www.circularmetabolism.com/</p><p>👂 iTunes: https://podcasts.apple.com/be/podcast/circular-metabolism-podcast/id1455115320</p><p>👂 Spotify: https://open.spotify.com/show/13qH9Oj4b0yF0dBidGAdFR</p><p>🙏 Tipeee: https://fr.tipeee.com/circular-metabolism-podcast</p>","author_name":"Aristide Athanassiadis"}