The Global Learning and Observations to Benefit the Environment Program invites you to take part in our upcoming Trees Challenge: “Trees in a Changing Climate,” and contribute data toward a better understanding of trees and forests.  >>

The Trees Around the GLOBE Student Research Campaign, GLOBE European Phenology Campaign, UNEP/GRID-Warsaw Centre (coordinator of GLOBE Poland), and the Urban Heat Island Effect - Surface Temperature Field Program, would like to invite you to participate in the Spring 2022 GLOBE Tree Height and Land Cover Intensive Observation Period (IOP) from 22 April through 22 May 2022.  >>