Webinars have become an important part of the campaign.
You can find here a list of webinars prepared for the Autumn Campaign, along with invitations to webinars hosted by the Trees Around GLOBE Campaign team.
Recordings of webinars from previous campaigns are available in the Archived Webinars section below, organized by date.
🌳Autumn Tree Campaign Webinars
PAST: Discover the 2025 Autumn Tree Campaign
📅 September 24
The first campaign webinar, Discover the 2025 Autumn Tree Campaign, brought together teachers and students from across the region. Participants explored campaign activities and resources, and shared their own experiences.
Highlights included:
Greetings from Kindergarten Medvjedići Rugvica, Croatia, along with their creative video showing activities for the youngest tree observers.
A lively student video from Primary School Luhačovice, Czechia, about a favourite birch tree and what students have discovered about it.
Insights from Adriana Mlynska, teacher at J.A.Baťu Secondary School of Polytechnics in Slovakia
The expert webinar organised by GLOBE Ireland as part of the Climate Resilience – Temperature and Trees campaign. The campaign helps students explore the connections between our built and natural environments.
UPCOMING: Climate Resilience: Temperature and Trees Campaign International Student webinar
📅 25 November 2025, 10:00 UTC
Join the international student webinar hosted by GLOBE Ireland to hear GLOBE students presenting their measurements on surface temperature (Urban Heat Island), trees, and phenology (Green Up/Down). Connect with students from Europe, Eurasia, and Africa to compare data and explore how trees help cool hot areas.
🌍 Trees Around the GLOBE Student Research Campaign
The Value of a Tree: Roots in Culture, Community, and the Future.
📅 Tuesday, 25 November 2025 @ 2:00pm ET (19:00 UTC, 20:00 CEST)
Join us as we hear from Adriana Northcutt, former 17-year educator in the Juneau, Alaska School District and now a STEM Educator and Regional Energy Catalyst, SSP from the Renewable Energy Alaska Project (REAP). Adriana will discuss how a single tree holds a deep and layered value that extends far beyond its physical form and how culturally, trees are living symbols—woven into Indigenous knowledge systems, traditions, and stories that teach respect for the land and the interconnectedness of life. She will also discuss how a place-based understanding reveals how specific trees are uniquely adapted to their environments, continually being shaped by the local ecosystems and communities that surround them.
Bringing it all together, Adriana will look at this all from a scientific lens and how trees are powerful actors in the carbon cycle, capturing and storing carbon dioxide through photosynthesis and helping to regulate our climate. Their presence improves air and water quality, supports biodiversity, and builds resilience against environmental change. Following Adriana’s featured presentation, Peder Nelson will highlight some recent work in Alaska that ties together the space-based and ground-based land cover and tree canopy observations
Please send an email to Campaign Lead, Brian Campbell, if you have interest in joining the webinar.
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📚 Archived webinars
Spring 2025
Our Spring with Trees(June 2, 2025)
Meeting of students and teachers participating in the 2025 Spring Tree Campaign. Student presentations and videos of the Spring Tree Campaign activities and collaborations. Inspiration for your future work.
Focus on the importance of phenology in understanding the Earth system and the importance of working with GLOBE data — submitting observations to the database and sharing them with scientists.
An introduction to 2025 Spring Tree (Phenology) Campaign activities and schedule - all you need to know to start your campaign activities easily. Information about green-up activities, carbon activities and other campaign resources.
The Best of GLOBE Europe & Eurasia (February 4-5, 2025)
This event provided a unique platform for students to present their projects to an international audience, gaining valuable insights and feedback from experts, including Dorian Janney, Brian Campbell and Peter Falcon from NASA and Marco Contin from University of Udine, Italy.
Exploring the 2024 Autumn Tree Campaign (September 23, 2024)
Watch the recording to learn about the 2024 Autumn Tree Campaign plans, green-down activities, and other tree-related teaching resources. During the session, experienced GLOBE teachers also shared their insights on doing campaign activities with students of different age groups.
Meeting of students and teachers participating in the 2024 Spring Tree Campaign. Student presentations and videos of the Spring Tree Campaign activities and collaborations. Inspiration for your future work.
Tree Explorers: Fostering the curiosity of students through exploration and outdoor activities (April 10, 2024)
Discovering the positive impact of inquiry-based learning and outdoor activities on student motivation. Gaining valuable insights and lesson ideas from GLOBE Czech and Lessons in Grass project educators.
Welcome to the Spring Campaign (February 28, 2024)
Introduction to 2024 Spring Tree Campaign activities and schedule. Green-up activities, the connection between trees and the global carbon cycle and the link of the Spring Tree campaign to the GLOBE Year of Carbon and Climate.
Contributions presented at the Campaign Padlet by: Elementary school Braća Seljan, Karlovac, Croatia - Bookcreator I Elementary school Rugvica, Croatia - Bookcreator I Elementary schools Luhačovice + Elementary school Olomouc - Bookcreator I High school Prelog, Croatia, Czech Republic - Story Map I Elementary school Lučko, Zagreb, Croatia - presentation I Elementary school Vladimira Nazora Pazin, Karojba, Croatia - presentation I Forestry and Woodworking school Karlovac, Croatia - presentation
Welcome to the Autumn Campaign (September 20, 2023)
An introduction to 2023 Autumn Campaign activities and schedule - green-down activities, carbon activity and tree height measurements.
The final meeting of the Spring Campaign, students presentations of projects and activities related to greening-up, the carbon cycle and the role of trees in cooling cities.
Encourage children to build up their sensitivity to trees and develop a close relationship with them. This crucial first stage provides the basis for building up knowledge. The Lessons in Grass project lesson plans, photos, videos, best practices, tips and tricks.
The Virtual Student Conference provided an opportunity to present Autumn Campaign activities and collaborations to other students, teachers, and researchers.
Welcome to the Autumn Campaign (September 22, 2022)
An introduction to 2022 Autumn Campaign activities and schedule - all you need to know about green-down activities, carbon activity and tree height measurements.
Meeting with Scientists #2 - Phenology in the Past and Now (May 4, 2022)
Dr Elena Bautista Sparrow is a scientist, who lives in Alaska and works with indigenous (native) communities. She learns from them wisdom about the environment and natural cycles. She is also the co-founder of GLOBE Phenology.
Meet this very special guest and learn about the importance of Phenology and about the unique connection between people and nature in Alaska.
Meeting with Scientists #1 - Trees and Urban Heat Island (April 7, 2022)
The role of trees in lowering the Urban Heat Island effect explained by Dr Kevin Czajkowski, Professor at the University of Toledo, USA and the lead of the GLOBE Urban Heat Island Effect Campaign. Introduction of new campaign activity Air-conditioned by Trees. Video by Gozo College Middle School, Malta that shows how students investigated the effect of trees on urban temperatures and called the local community to action.
Introduction to 2022 Spring Tree Campaign activities and schedule - all you need to know about green-up activities, carbon activities and tree height measurements. Presentation of the campaign experience by a GLOBE team from Elementary school Rugvica, Croatia,
The webinar was the final meeting of the schools involved in the autumn phenology campaign and also a presentation of the outcomes of the GLOBE Tree Reporters Challenge.
What was presented?
Green-down and reporters activities presented by students from Poltava school 38, Ukraine
School collaboration using Padlet introduced by students and teachers from Elementary schools Dubovac and Banija, Croatia
Tree TV videos by
Základná škola Plavecký Štvrtok, Slovakia / Osnovna škola Banija, Croatia / St.Michael School, Malta / Complex of Schools No 5 in Zabrze, Poland / Secondary school Mate Blažine Labin, Croatia / Osnovna škola Rugvica, Croatia / Luhansk Regional Center for Ecological and Naturalistic Creativity of Student Youth, Ukraine / Gozo College Middle School, Malta / Jonava R.Samulevicius progymnasium, Lithuania / Center for Extracurricular Education of Melitopol City Council of Zaporizhia Region, Ukraine
Tree Magazine posters from
Gymnasium Mate Blažina Labin, Croatia / OU " Dame Gruev", North Macedonia / Srednja škola Čakovec, Croatia / The Affiliated Senior High School of National Chung Hsing University, Taiwan / Gozo College Middle School, Malta / Osnovna škola Antuna Mihanovića Osijek, Croatia / Srednja škola Lovre Montija , Knin, Croatia / CVČ VČIELKA PÚCHOV, Slovakia / Young naturalists station of Velyka Pusarivka Sumy region, Ukraine
Autumn Colouring Through the Eyes of Scientists (November 10, 2021)
Arnold van Vliet, a phenologist at Wageningen University in the Netherlands and one of the authors of the European Phenology Campaign and GrowApp. In the webinar, he talked about the importance of greening-down for trees and for the global carbon cycle. He also explained how GrowApp pictures help in scientific research.
Brian Campbell, the lead of the Trees Around the GLOBE student research campaign introduced plans and opportunities in Year 4 of the Campaign for teachers and students.
All you need to know about the Autumn Campaign (September 16, 2021)
An introduction to the Autumn campaign activities resources and schedule. Zuzana Lhotakova, a scientist from Charles University presented and explained the new carbon activity How Leaves Lose Weight.
Spring observations and cooperation. Sharing and learning from other schools and countries. (June 2, 2021)
Teachers and students participating in the Spring Phenology Campaign shared their experiences and inspired each other with projects and activities related to green-up and the carbon cycle. Webinar recording
This recording will help you to enter green-up data, create a graph of leaf growth using the GLOBE visualisation tool and create and use student accounts.
A meeting with Czech gardening expert and ecologist Michal Plundra on the role of trees in an urban environment and taking care of trees and with scientists from Charles University, Premysl Stych (Czech Republic) and Natalia Kobliuk (Ukraine) who presented how to look at trees from above using Sentinel Hub. Introducing 2021 Community Trees Challenge: Science is Better Together.
All You Need to Know about the 2021 Spring Campaign. (March 10, 2021).
Introducing the Spring campaign schedule and resources, green-up and carbon cycle activities. Dr Gunta Kalvāne from the University of Latvia shared, what it means to work as a phenologist and why she finds phenology important and interesting.
Autumn Tree Observations and Cooperation: Sharing and Learning from other Schools and Countries. (November 19, 2020)
Teachers and students participating in the autumn phenology campaign shared their experiences and inspired each other with projects and activities related to green-down and tree height measurements.
An introduction to the GLOBE visualization tool. The tool allows you to create graphs of your tree's greening down and the GLOBE Observer. Overview of changes to the GLOBE website and GLOBE apps, which will be implemented in November 2020.
Educators and Students Aligning Greenings and Tree Height: A Collaboration Between the European Phenology Campaign and the Trees Around the GLOBE Student Research Campaign. (October 13, 2020)
Trees around the GLOBE Campaign webinar, where students from the Czech Republic: Primary School Pist and Primary School Hradec Kralove, Stefcova presented their research on greenings and phenology. The European Phenology Campaign Lead, Lenka Kleger discussed the science of greenings and why the observations are so important to understanding local environments, Dorian Janney, Cross-Campaigns Lead from NASA Goddard/ADNET introduced using Story Maps to showcase the trees in your environment, and Dr Christopher Shuman, Campaign Subject Matter Expert, and Trees in the
News Lead from NASA Goddard/UMBC presented “Trees in the News” highlighting France’s Parc National des Forêts de Champagne et Bourgogne.
The webinar provides a look at the autumn change of trees from 3 different perspectives: inside the trees (Zuzana Lhotakova, Charles University); field observations (Brian Campbell, NASA), and satellite view (Peder Nelson, Oregon State University)
All you need to know about the Autumn Campaign (September 21, 2020)
Autumn campaign schedule, activities, and resources. Inspiration by the school collaboration project. Introduction to the Trees Around the GLOBE campaign by its lead Brian Campbell. Online tools looking at phenology from space introduced by Peder Nelson (Oregon State University).
Why is Phenology Important and what role do Trees Play in the Carbon Cycle? (April 29, 2020)
In the webinar, you will learn about the meaning and importance of phenology. Lenka Hájková describes, how scientists use phenology data and present concrete examples. You will also understand the basics of the carbon cycle and its connection with trees.
Trees in Changing Environment: What Do Scientists Say? (May 21, 2020)
Three scientists - Zorana Sedlar (Natural History Museum, Croatia), Lenka Hájková (Hydrometeorological Institute, Czech Republic) and Zuzana Lhotáková (Charles University, Czech Republic) talk about their research on trees and explain how trees respond to changes in their environment.
