My Tree in Autumn 

In autumn, the trees shine with many shades of yellow and red as they prepare for winter sleep. Their leaves gradually turn colour and fall down in a process called green-down. 

We can experience the beauty of autumn change together!


Schools registered for the campaign receive three learning activities for students and regular newsletters with invitations to webinars. They also have the opportunity to earn a GLOBE certificate and be part of the lively campaign community! 

Join the 2022 autumn campaign - register now!

For further information about the campaign, please read below or email lenka.kleger@terezanet.cz. 


Select one of the seven species (hazel, fig, lime, oak, sour cherry, birch, beech) that GLOBE students around Europe follow in autumn.


What else can members do?

  • Research how the autumn change of trees relates to weather.
  • Find out, how tall your tree is by trying the tree height activity.
  • Join webinars organized in cooperation with scientists.
  • Take pictures with GrowApp and make a time-lapse video.
  • Share results and pictures with other schools at the discussion forum.
  • Get inspired by the research and activities of other students.
  • Connect to teachers and students from other countries by finding a partner school through the discussion forum.
  • Read the article "Why do the leaves change color?" and learn why and how the autumn change of trees happen.

"The benefits are multiple for the students such as observing nature and learning to be patient. They analyse the results, make a hypothesis and give the conclusion in the end which is the basis for the scientific way of thinking."

Ankica Veseljić, OS Banija, Croatia

Activities for students

Additional activities

To observe and record tree color change (Activities 2 and 3) students will need the GLOBE Plant Color Guide. To get this guide, contact your GLOBE country coordinator.

To read more about GLOBE green down observations, download the Green-Down protocol, Field guide and Data Sheet from the Download materials tab.


Why collaborate?

Apart from new knowledge about phenology, students learn to communicate with international students. These skills are essential for living in the 21st century.

How to start a collaboration?

Go to the campaign discussion forum and invite partners to collaborate by post. Wait for a post to reach other schools registered on the forum and get ready for new partnerships.

After finding a partner school, what can members do?

  • Regularly exchange data and pictures by email
  • Plan a call and discuss their experience and results
  • Plan a student research project together