| ★ |  H2O Hack 2021 Alex Held presentation on the CSIRO AquaWatch Mission | Agrifood Innovation Institute @anuagrifood | 17 | Australia | |
| 14 |  Securing Africa’s Future Water Needs | Center for Strategic & International Studies @csis | 862 | Estados Unidos | 84 |
| 18 |  Quantum Sensing Sheds Light on Hidden Oceans | | 192 | — | 83 |
| 19 |  Creating clean water from the air. Exploring super-absorbent hydrogels with Dr Youhong Nancy Guo | Future Here Show @futurehere | 75 | Reino Unido | 83 |
| 17 |  🌊Day in the life of a Marine Conservation Volunteer with Oceans 2 Earth Volunteers | Oceans 2 Earth – Ethical Travel & Volunteering @oceans2earth | 61 | Australia | 83 |
| 20 |  Safeguarding Astronauts: The Next Era of Space Medicine | News from world @newsfromworld-y3k | 29 | — | 83 |
| 15 |  H2O Hack presentation from Alicia Garden, CEO of Goanna Ag | Agrifood Innovation Institute @anuagrifood | 19 | Australia | 83 |
| 1 |  H2O Hack presentation from Dr Caitlin Byrt from ANU Research School of Biology and MTE | Agrifood Innovation Institute @anuagrifood | 15 | Australia | 90 |
| 2 |  H2O Hack 2021 presentation by Jasmine Muir from FrontierSI and CSIRO AquaWatch | Agrifood Innovation Institute @anuagrifood | 11 | Australia | 90 |
| 6 |  H2O Hack talk by Dr John Evans on the future of water efficiency in crops | Agrifood Innovation Institute @anuagrifood | 11 | Australia | 85 |
| 4 |  H2O Hack talk by Prof Katherine Daniell from ANU CECS & Institute for Water Futures | Agrifood Innovation Institute @anuagrifood | 9 | Australia | 87 |
| 8 |  H20 Hack talk from Danilo Dadamia of National Commission for Space Activities, Argentina | Agrifood Innovation Institute @anuagrifood | 9 | Australia | 85 |
| 3 |  H2O Hack presentation from Dr Arnold Dekker | Agrifood Innovation Institute @anuagrifood | 6 | Australia | 89 |
| 13 |  H2O Hack presentations from Farmbot Founder Andrew Coppin | Agrifood Innovation Institute @anuagrifood | 6 | Australia | 84 |
| 12 |  H2O Hack presentation from Dr Tim McVicar | Agrifood Innovation Institute @anuagrifood | 5 | Australia | 84 |
| 16 |  Scott Bainbridge talks about marine sensors for the ANU-AgriFutures space technology workshop | Agrifood Innovation Institute @anuagrifood | 4 | Australia | 83 |
| 7 |  H2O Hack 2021 Institute for Water Futures Prof Lorrae van Kerkhoff | Agrifood Innovation Institute @anuagrifood | 3 | Australia | 85 |
| 5 |  H2O Hack presentation from Tom Hu of NSSN | Agrifood Innovation Institute @anuagrifood | 2 | Australia | 86 |
| 9 |  H2O Hack presentation from Eldar Rubinov of Frontier SI | Agrifood Innovation Institute @anuagrifood | 2 | Australia | 84 |
| 11 |  What's The MATTER With H2O? | | 2 | Australia | 84 |