Landscape Development Intensity and Pollutant Emergy / Empower Density Indices as Indicators of Ecosystem Health . in Jorgensen, et . al ( eds ) Handbook of Ecological Indicators for Assessment of Ecosystem Health 2nd ed.
12.
For instance, for the CCD, the Unesco-funded Observatoire du Sahara et du Sahel ( OSS ) has created the R�seau d'Observatoires du Sahara et du Sahel ( ROSELT ) ( website ) as a network of cross-Saharan observatories to establish ecological indicators.
13.
It can be considered, for example, that there are major subsets of environmental indicators in-line with the Pressure-State-Response model developed by the OECD . One subset of environmental indicators is the collection of ecological indicators which can include physical, biological and anthropogenic pressures, such as greenhouse gas emissions.
