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.