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| 9 | Protecting natural resources | Middle school Earth and space science | Khan Academy | | 2.3K | Estados Unidos | 72 |
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| 5 | Global Warming Triggering Ocean Acidification Crisis | Embers of Hope - The Fight For Our Future E8 | Animal Planet India @animalplanetindia | 219 | India | 73 |
| 11 | Researching Coastal Ecosystems | Environmental Sciences Field Trip to Denia | IE University @ieuniversity | 143 | España | 71 |
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| 4 | How Can Nature Help Us Manage Flood Risk? | Villars Institute @villarsinstitute | 55 | — | 73 |
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| 15 | Volunteer Work in Fiji with Projects Abroad | Projects Abroad @projectsabroad | 38 | — | 71 |
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| 14 | When Conservation Policies Unintentionally Thwart Ocean Sustainability | JHU Advanced Academic Programs @jhuaap | 24 | Estados Unidos | 71 |
| 6 | Three Ocean Advocates - follow up presentations | Environmental Forum of Marin @marinforumvideo | 8 | — | 72 |
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| 17 | How do we detect the impact of rising sea levels? - Sulfur isotope research | Faculty of Sciences, Engineering & Technology @scienceatadelaide | 1 | Australia | 71 |