Resources - North America
Phenology Resources
Background Information
Green-down and phenology information can be found in:
- Teacher Guides for most learning activities (e.g., see A First Look at Phenology; PDF)
- Green-Down eTraining PowerPoint
- Science of Fall Colors from the USDA Forest Service
- "Why do leaves change color in the fall?" video from the series of BeLeaf It or Not! videos by Michigan State University Extension
- A Year in the Life of a Tree playlist from The Woodland Trust follows many different tree species through the year with one minute time-lapse videos.
Other Resources
- GLOBE North America Fall Phenology Campaign: Measuring Green-Down PowerPoint (PDF)
- North America Fall Phenology Campaign Flyer (PDF)
- GLOBE Grandma: Autumn Series: geared toward early primary grade levels (source: Arctic and Earth SIGNS)
- GLOBE Educator One-Week Pacing Guide: Phenology (PDF): geared toward grades 4 to 8 (source: NASA Langley GLOBE Partnership)
- GLOBE European Phenology Campaign: GLOBE Europe/Eurasia conducts phenology measurement campaigns each spring and fall. Their website has links to activities, webinars, and resources around green-up and green-down.