http://www.fao.org/home/en/
https://www.iucn.org
https://www.srs.fs.usda.gov/
http://igcp.org/
https://www.global-datalabs.com/
software support from ESRI
https://www.esri.com/en-us/home
https://www.forth.gr/
https://sig-gis.com/
https://here-there-mapping.com
DLR
https://www.dlr.de/eoc
UCLA Institute of the Environment and Sustainability
https://www.ioes.ucla.edu/