O=C=O<p>From Vienna to the world: launch of citizen science campaign to measure <a href="https://climatejustice.social/tags/trees" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>trees</span></a> and map carbon</p><p>On 23 June 2025, <a href="https://climatejustice.social/tags/IIASA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>IIASA</span></a> will launch the global <a href="https://climatejustice.social/tags/CitizenScience" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CitizenScience</span></a> “Tree-Quest” campaign at the Living Planet Symposium in <a href="https://climatejustice.social/tags/Vienna" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Vienna</span></a>, inviting people from all over the world to take part using the free <a href="https://climatejustice.social/tags/GeoQuest" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GeoQuest</span></a> app. As part of the Citizens for <a href="https://climatejustice.social/tags/Copernicus" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Copernicus</span></a> project, IIASA researchers will also lead hands-on workshops with schoolchildren at the symposium, teaching them how to use the app and collect ground data that will help scientists map the <a href="https://climatejustice.social/tags/carbon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>carbon</span></a> stored in trees with <a href="https://climatejustice.social/tags/satellite" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>satellite</span></a> data more accurately.</p><p><a href="https://iiasa.ac.at/news/jun-2025/from-vienna-to-world-launch-of-citizen-science-campaign-to-measure-trees-and-map" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">iiasa.ac.at/news/jun-2025/from</span><span class="invisible">-vienna-to-world-launch-of-citizen-science-campaign-to-measure-trees-and-map</span></a></p>