Climate Tipping Points
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End-Permian Extinction Teaches us About Climate Action | Tara Nair | TEDxSouth Delaware Street Youth
TEDx Talksยท 2025-09-02 16:24
Climate Change History and Urgency - The industry recognizes that human activities have fundamentally altered the planet, akin to the volcanic eruptions that caused the end-Permian extinction [1][4] - Research suggests that in the next 70 years, the world will reach 20% of the end-Permian extinction level, highlighting the urgency of addressing human-induced greenhouse gas emissions [4] - The industry emphasizes the importance of understanding climate tipping points, such as the dieback of tropical rainforests and the melting of the Arctic ice sheet, which are approaching critical thresholds [5][6][7] Potential Risks and Mitigation Strategies - Studies indicate that marine collapse may be exponential, with ocean acidification being an early sign, suggesting the need for greater urgency in treating ocean ecosystems [8][9] - Climate models suggest that even cutting emissions may not be enough to fully reverse warming past a certain point, implying a need to redefine climate risk in terms of feedback activation zones [11] - Research highlights the potential of certain reef microbes for pollutant degradation, suggesting the possibility of selectively inoculating reef zones with optimized microbial communities to improve ecosystem resilience [13][14] Geoengineering and Future Actions - The industry acknowledges the controversy surrounding geoengineering but emphasizes its importance in understanding technological intervention to inform current and future climate solutions [14][15][16][17] - The industry stresses that national climate pullback is a dangerous step in the wrong direction, and the time to act is now, including cutting emissions, funding science, and guarding public support for climate solutions [18]