Remote Sensing in Support of Multilateral Environmental Agreements
نویسندگان
چکیده
The rapid growth in the number of multilateral environmental agreements (MEAs, or “environmental treaties”) since the 1972 Stockholm Conference on the Environment has been an encouraging sign of international commitment to protecting the environment. The proliferation of treaties, up from 140 in 1970 to over 350 today (IUCN 1998), has resulted in an attendant need for spatial data on the health of the Earth’s biophysical systems, and for better understanding of the socio-economic processes and government policies that affect the environment. This information contributes to the design of improved policy instruments. Remotely sensed data are critical to understanding the Earth’s physical and social systems and the interactions between the two. Although not the only tool for gathering such data, remote sensing complements groundbased methods in the following ways: it provides accurate, objective and comparable data; it provides information on ecological regions at widely-varying scales; and because it is sensed from space it can present a wide range of relevant data synoptically and without infringing national sovereignty. For some environmental agreements remote sensing may provide the only viable means of compliance verification because the phenomena being monitored occurs over large and inaccessible geographic areas.
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