Explore and connect to the GLOBE Rivers and Lakes protocol bundle. 

Explore and connect to hydrosphere protocols in GLOBE. Each protocol has related Earth System Data Explorer datasets identified as well.

Meet Jim Crawford, lead project scientist in atmospheric chemistry from NASA’s Langley Research Center in Hampton, Virginia. 

The purpose of this activity is to have students use an Earth Systems perspective to identify the various causes associated with changes to Earth's forests as they review Landsat imagery of site locations from around the world.