The University of Arizona

About the Biosphere 2 Landscape Evolution Observatory (LEO)



Investigating how water, carbon, and energy move through the landscape.


The Biosphere 2 Landscape Evolution Observatory (LEO) consists of three huge landscapes constructed inside an environmentally controlled greenhouse facility. LEO aims to address fundamental “grand challenges” in Earth systems science:

  • How will Earth's landscapes change as climate changes?
  • How do water, energy and carbon move through landscapes?
  • How do biological systems (vegetation and microbes) modify landscapes?
  • How will terrestrial water resources alter with climate change?

Construction is nearly complete! The first landscape is operational, and the second and third hillslopes will be completed in 2013!

Check out the blog for updates from the first LEO experiments.

Read more here about the LEO project: UANews