Trees are amazing. As autumn arrives, they prepare for winter
rest, turning their leaves into a stunning display of colors.
Observe your tree as its leaves change and fall, and share your
findings with the GLOBE community.
The Autumn Tree (Phenology) Campaign runs through autumn 2025,
starting in September. Join to receive regular news and
guidance, discover the beauty of autumn trees, learn about
their vital role in sustaining life on Earth, and contribute to a
global understanding of our environment.
Choose one of the seven tree species followed by GLOBE students
across Europe (Hazel, Fig, Lime, Oak, Sour Cherry, Birch, Beech)
Download or request your Plant Color Guide
Begin observing leaf color change and leaf fall using short activities based on
the Green-Down protocol
Campaign activities and opportunities
🍂 3 simple and fun activities to guide you through
Green-Down observations and sharing of data 🍂
Measure your tree’s height 🍂 Share results and photos in the campaign
discussion forum 🍂 Collaborate with partner
schools locally or internationally 🍂
Certificates for active schools
🌍 Opening Webinar
Connect to the opening webinar on 24 September at 3:00 PM
CEST to learn all you need to know about the Autumn Campaign.
