Explore using units for calculations with Normalized Difference Vegetation Index (NDVI). NDVI is a ratio of different light wavelength reflectance which can be used to map the density of green vegetation.

Examine the images to see the projected differences in land use between 1900 and 2100. 

Students explore albedo, sea ice, and the relationship between changing albedo and changing sea ice using data visualizations. 

Students observe the surface temperatures of a variety of surface types found in a suburban environment.

Students examine the two time series images to determine the differences between seasonal ice melt over water versus land.

Check out the Arctic and Earth SIGNs video to explore how climate models are used in climate change research.