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Lessons from Earth’s past for our climate future | Wahyuningrum Lestari | TEDxQatarUniversity
TEDx Talks· 2026-03-04 17:05
Does anyone recognize this place. No. This is one of my favorite place here in Qatar.And I'll tell you that the sunset there is very beautiful. Yes, that's a beach. Speaking about the beach, just imagine standing on it, the wave crossing your feet, the wind blowing your hair and the sun slipping through your fingers.It feels ordinary, right. But actually, hidden on those grains are the stories from million years ago. So yes, that's the story about the ancient forest that thrive, about the ocean that vanish ...
End-Permian Extinction Teaches us About Climate Action | Tara Nair | TEDxSouth Delaware Street Youth
TEDx Talks· 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]