Earth observation
Earth Observation is a global endeavour. It is the process of making measurements of the entire planet using satellites.These measurements enable us to monitor changes to the environment and patterns of land use and can influence environmental policy. Within two years of satellite monitoring showing a hole in the ozone layer, for example, Europe and 24 non-European countries had signed up to The Montreal Protocol on Substances that Deplete the Ozone Layer. This protocol protects the ozone layer...